diff --git a/mozilla/servo/components/style/build_gecko.rs b/mozilla/servo/components/style/build_gecko.rs

index de8daef..a04e0dc 100644

--- a/mozilla/servo/components/style/build_gecko.rs

+++ b/mozilla/servo/components/style/build_gecko.rs

@@ -218,6 +218,8 @@ mod bindings {

             for dir in SEARCH_PATHS.iter() {

                 builder = builder.clang_arg("-I").clang_arg(dir.to_str().unwrap());

             }

+            builder = builder.clang_arg("-I").clang_arg("/usr/include");

+            builder = builder.clang_arg("-I").clang_arg("/usr/include/nspr");

             builder = builder.include(add_include("mozilla-config.h"));

             if build_type == BuildType::Debug {