diff --git a/mk/sub.mk b/mk/sub.mk
index 93623b8b367..d117a8ee082 100644
--- a/mk/sub.mk
+++ b/mk/sub.mk
@@ -24,6 +24,9 @@ DEPS_rust-netsurfcss += \
 DEPS_rust-wapcaplet += \
 	libwapcaplet
 
+CFLAGS_rust-wapcaplet += \
+	"-I$(S)src/libwapcaplet/include"
+
 CFLAGS_mozjs += \
 	"-I../mozjs/dist/include"
 
diff --git a/src/rust-wapcaplet b/src/rust-wapcaplet
index d1a2915aad4..1e93f4f517c 160000
--- a/src/rust-wapcaplet
+++ b/src/rust-wapcaplet
@@ -1 +1 @@
-Subproject commit d1a2915aad4317c8f71ab610de13e065e2a31cea
+Subproject commit 1e93f4f517cf148d4ff68f8a25797294307c2b54