diff --git a/components/style/build_gecko.rs b/components/style/build_gecko.rs
index 39a7afeb44e..8c784ac1eb5 100644
--- a/components/style/build_gecko.rs
+++ b/components/style/build_gecko.rs
@@ -258,6 +258,7 @@ mod bindings {
                 vars: true,
                 ..CodegenConfig::nothing()
             })
+            .include(add_include("nsCSSPseudoClasses.h"))   // servo/rust-bindgen#599
             .header(add_include("nsStyleStruct.h"))
             .include(add_include("mozilla/ServoPropPrefList.h"))
             .header(add_include("mozilla/StyleAnimationValue.h"))