diff --git a/config/system-headers b/config/system-headers
index ea164ca4675..59ebebdddb4 100644
--- a/config/system-headers
+++ b/config/system-headers
@@ -1011,6 +1011,7 @@ bzlib.h
 #endif
 #ifdef MOZ_PLATFORM_HILDON
 hildon-uri.h
+hildon-mime.h
 #endif
 #ifdef NS_OSSO
 libosso.h
diff --git a/js/src/config/system-headers b/js/src/config/system-headers
index ea164ca4675..59ebebdddb4 100644
--- a/js/src/config/system-headers
+++ b/js/src/config/system-headers
@@ -1011,6 +1011,7 @@ bzlib.h
 #endif
 #ifdef MOZ_PLATFORM_HILDON
 hildon-uri.h
+hildon-mime.h
 #endif
 #ifdef NS_OSSO
 libosso.h