diff --git a/common.make b/common.make
index ebb560aa..ae0f601d 100644
--- a/common.make
+++ b/common.make
@@ -307,6 +307,7 @@ ifeq ($(GNUSTEP_IS_FLATTENED), no)
 # then NETWORK, then SYSTEM.
 GS_HEADER_PATH = \
  $(GNUSTEP_$(domain)_HEADERS)/$(GNUSTEP_TARGET_DIR) \
+ $(GNUSTEP_$(domain)_HEADERS)/$(LIBRARY_COMBO) \
  $(GNUSTEP_$(domain)_HEADERS)
 
 GS_LIBRARY_PATH = \