diff --git a/components/canvas/Cargo.toml b/components/canvas/Cargo.toml
index c67c8ea8733..f81900768c6 100644
--- a/components/canvas/Cargo.toml
+++ b/components/canvas/Cargo.toml
@@ -2,6 +2,7 @@
 name = "canvas"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
+publish = false
 
 [lib]
 name = "canvas"
diff --git a/components/canvas_traits/Cargo.toml b/components/canvas_traits/Cargo.toml
index c159707a537..1ff86f11227 100644
--- a/components/canvas_traits/Cargo.toml
+++ b/components/canvas_traits/Cargo.toml
@@ -2,6 +2,7 @@
 name = "canvas_traits"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
+publish = false
 
 [lib]
 name = "canvas_traits"
diff --git a/components/compositing/Cargo.toml b/components/compositing/Cargo.toml
index a82e8c7fb31..36a8da66b2c 100644
--- a/components/compositing/Cargo.toml
+++ b/components/compositing/Cargo.toml
@@ -2,6 +2,7 @@
 name = "compositing"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
+publish = false
 
 [lib]
 name = "compositing"
diff --git a/components/devtools/Cargo.toml b/components/devtools/Cargo.toml
index 9d4f910dfe1..1378c35f594 100644
--- a/components/devtools/Cargo.toml
+++ b/components/devtools/Cargo.toml
@@ -2,6 +2,7 @@
 name = "devtools"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
+publish = false
 
 [lib]
 name = "devtools"
diff --git a/components/devtools_traits/Cargo.toml b/components/devtools_traits/Cargo.toml
index 64d5957b7b3..89909945b6d 100644
--- a/components/devtools_traits/Cargo.toml
+++ b/components/devtools_traits/Cargo.toml
@@ -2,6 +2,7 @@
 name = "devtools_traits"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
+publish = false
 
 [lib]
 name = "devtools_traits"
diff --git a/components/gfx/Cargo.toml b/components/gfx/Cargo.toml
index bc4b26de28e..d231bc107e2 100644
--- a/components/gfx/Cargo.toml
+++ b/components/gfx/Cargo.toml
@@ -3,6 +3,7 @@
 name = "gfx"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
+publish = false
 
 [lib]
 name = "gfx"
diff --git a/components/gfx_traits/Cargo.toml b/components/gfx_traits/Cargo.toml
index 8ab853799e3..406b7f6b74c 100644
--- a/components/gfx_traits/Cargo.toml
+++ b/components/gfx_traits/Cargo.toml
@@ -2,6 +2,7 @@
 name = "gfx_traits"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
+publish = false
 
 [lib]
 name = "gfx_traits"
diff --git a/components/layout/Cargo.toml b/components/layout/Cargo.toml
index 44cb976afe4..0d27223b3d9 100644
--- a/components/layout/Cargo.toml
+++ b/components/layout/Cargo.toml
@@ -2,6 +2,7 @@
 name = "layout"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
+publish = false
 
 [lib]
 name = "layout"
diff --git a/components/layout_traits/Cargo.toml b/components/layout_traits/Cargo.toml
index 1f3a570b60c..47b4edd4eef 100644
--- a/components/layout_traits/Cargo.toml
+++ b/components/layout_traits/Cargo.toml
@@ -2,6 +2,7 @@
 name = "layout_traits"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
+publish = false
 
 [lib]
 name = "layout_traits"
diff --git a/components/msg/Cargo.toml b/components/msg/Cargo.toml
index 5ad3de60a52..5e3da24f14d 100644
--- a/components/msg/Cargo.toml
+++ b/components/msg/Cargo.toml
@@ -2,6 +2,7 @@
 name = "msg"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
+publish = false
 
 [lib]
 name = "msg"
diff --git a/components/net/Cargo.toml b/components/net/Cargo.toml
index ef04193afc3..8c7f838fb1e 100644
--- a/components/net/Cargo.toml
+++ b/components/net/Cargo.toml
@@ -2,6 +2,7 @@
 name = "net"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
+publish = false
 
 [lib]
 name = "net"
diff --git a/components/net_traits/Cargo.toml b/components/net_traits/Cargo.toml
index 1290f346052..31ad39ffee4 100644
--- a/components/net_traits/Cargo.toml
+++ b/components/net_traits/Cargo.toml
@@ -2,6 +2,7 @@
 name = "net_traits"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
+publish = false
 
 [lib]
 name = "net_traits"
diff --git a/components/plugins/Cargo.toml b/components/plugins/Cargo.toml
index f1c2c15dad7..192c25d9c9e 100644
--- a/components/plugins/Cargo.toml
+++ b/components/plugins/Cargo.toml
@@ -2,6 +2,7 @@
 name = "plugins"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
+publish = false
 
 [lib]
 name = "plugins"
diff --git a/components/profile/Cargo.toml b/components/profile/Cargo.toml
index 119f5b53b46..d44d3635f1e 100644
--- a/components/profile/Cargo.toml
+++ b/components/profile/Cargo.toml
@@ -2,6 +2,7 @@
 name = "profile"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
+publish = false
 
 [lib]
 name = "profile"
diff --git a/components/profile_traits/Cargo.toml b/components/profile_traits/Cargo.toml
index 5a79f3dc744..b783c76d799 100644
--- a/components/profile_traits/Cargo.toml
+++ b/components/profile_traits/Cargo.toml
@@ -2,6 +2,7 @@
 name = "profile_traits"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
+publish = false
 
 [lib]
 name = "profile_traits"
diff --git a/components/range/Cargo.toml b/components/range/Cargo.toml
index 6064280502a..74eeffac64a 100644
--- a/components/range/Cargo.toml
+++ b/components/range/Cargo.toml
@@ -3,6 +3,7 @@
 name = "range"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
+publish = false
 
 [lib]
 name = "range"
diff --git a/components/script/Cargo.toml b/components/script/Cargo.toml
index 2e7a38133a1..8f6cc070382 100644
--- a/components/script/Cargo.toml
+++ b/components/script/Cargo.toml
@@ -2,6 +2,7 @@
 name = "script"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
+publish = false
 
 build = "build.rs"
 
diff --git a/components/script_traits/Cargo.toml b/components/script_traits/Cargo.toml
index 2869b40ee3d..b77126be9a1 100644
--- a/components/script_traits/Cargo.toml
+++ b/components/script_traits/Cargo.toml
@@ -2,6 +2,7 @@
 name = "script_traits"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
+publish = false
 
 [lib]
 name = "script_traits"
diff --git a/components/servo/Cargo.toml b/components/servo/Cargo.toml
index 91a07846f9e..1ced885adc5 100644
--- a/components/servo/Cargo.toml
+++ b/components/servo/Cargo.toml
@@ -4,6 +4,7 @@ name = "servo"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 build = "build.rs"
+publish = false
 
 [lib]
 name = "servo"
diff --git a/components/style/Cargo.toml b/components/style/Cargo.toml
index 50887d09760..be060d0ca20 100644
--- a/components/style/Cargo.toml
+++ b/components/style/Cargo.toml
@@ -2,6 +2,7 @@
 name = "style"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
+publish = false
 
 build = "build.rs"
 
diff --git a/components/style_traits/Cargo.toml b/components/style_traits/Cargo.toml
index 17dc272d4ca..d20054f406b 100644
--- a/components/style_traits/Cargo.toml
+++ b/components/style_traits/Cargo.toml
@@ -2,6 +2,7 @@
 name = "style_traits"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
+publish = false
 
 [lib]
 name = "style_traits"
diff --git a/components/util/Cargo.toml b/components/util/Cargo.toml
index 88e558a0ba4..6122a519100 100644
--- a/components/util/Cargo.toml
+++ b/components/util/Cargo.toml
@@ -2,6 +2,7 @@
 name = "util"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
+publish = false
 
 [lib]
 name = "util"
diff --git a/components/webdriver_server/Cargo.toml b/components/webdriver_server/Cargo.toml
index 2e416eda719..c53d47f1516 100644
--- a/components/webdriver_server/Cargo.toml
+++ b/components/webdriver_server/Cargo.toml
@@ -2,6 +2,7 @@
 name = "webdriver_server"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
+publish = false
 
 [lib]
 name = "webdriver_server"