diff --git a/build/mac/NGLayoutBuildList.pm b/build/mac/NGLayoutBuildList.pm
index e0c129fed67c..1a5af141ee6a 100644
--- a/build/mac/NGLayoutBuildList.pm
+++ b/build/mac/NGLayoutBuildList.pm
@@ -1203,6 +1203,7 @@ sub BuildClientDist()
 
     #SECURITY
     _InstallFromManifest(":mozilla:extensions:psm-glue:public:MANIFEST",            "$distdirectory:idl:");
+    _InstallFromManifest(":mozilla:extensions:psm-glue:src:MANIFEST",            "$distdirectory:include:");
 
     _InstallFromManifest(":mozilla:security:psm:lib:client:MANIFEST",               "$distdirectory:security:");
     _InstallFromManifest(":mozilla:security:psm:lib:protocol:MANIFEST",             "$distdirectory:security:");