diff --git a/classes/gui/widgets/special/Makefile b/classes/gui/widgets/special/Makefile
index 8229c17..5349e0c 100644
--- a/classes/gui/widgets/special/Makefile
+++ b/classes/gui/widgets/special/Makefile
@@ -8,6 +8,8 @@ include $(dir $(firstword $(MAKEFILE_LIST)))/$(SMOOTH_PATH)/Makefile-options
 # Change these variables to fit your project:
 ifeq ($(USE_BUNDLED_LIBFRIBIDI),True)
 	MYCCOPTS += -I$(SRCDIR)/$(SMOOTH_PATH)/include/support
+else
+	MYCCOPTS += -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include
 endif
 
 # Enter object files here: