diff --git a/cc/config/global.go b/cc/config/global.go
index d4106eb18..d63e3242d 100644
--- a/cc/config/global.go
+++ b/cc/config/global.go
@@ -438,6 +438,8 @@ func init() {
 	pctx.StaticVariableWithEnvOverride("ClangShortVersion", "LLVM_RELEASE_VERSION", ClangDefaultShortVersion)
 	pctx.StaticVariable("ClangAsanLibDir", "${ClangBase}/linux-x86/${ClangVersion}/lib/clang/${ClangShortVersion}/lib/linux")
 
+	exportedVars.ExportStringListStaticVariable("WarningAllowedProjects", WarningAllowedProjects)
+
 	// These are tied to the version of LLVM directly in external/llvm, so they might trail the host prebuilts
 	// being used for the rest of the build process.
 	pctx.SourcePathVariable("RSClangBase", "prebuilts/clang/host")