diff --git a/libgimp/Makefile.am b/libgimp/Makefile.am
index c08c300011..00242b2296 100644
--- a/libgimp/Makefile.am
+++ b/libgimp/Makefile.am
@@ -67,6 +67,8 @@ endif
 gimpincludedir = $(includedir)/gimp-$(GIMP_API_VERSION)/libgimp
 
 AM_CPPFLAGS = \
+	-DGIMPDIR=\""$(gimpdir)"\"				\
+	-DGIMP_USER_VERSION=\"$(GIMP_USER_VERSION)\"		\
 	-DG_LOG_DOMAIN=\"LibGimp\"	\
 	-DGIMP_COMPILATION		\
 	-I$(top_srcdir)			\