diff --git a/gdk/Makefile.am b/gdk/Makefile.am
index 6444eca84b..ed4540c310 100644
--- a/gdk/Makefile.am
+++ b/gdk/Makefile.am
@@ -2,6 +2,8 @@
 include $(top_srcdir)/Makefile.decl
 -include $(INTROSPECTION_MAKEFILE)
 INTROSPECTION_GIRS =
+INTROSPECTION_SCANNER_ENV = \
+   CC="$(CC)"
 INTROSPECTION_SCANNER_ARGS = \
 	--add-include-path=../gdk \
 	--warn-all
diff --git a/gtk/Makefile.am b/gtk/Makefile.am
index f8c0cb3f79..68b3eeb1a9 100644
--- a/gtk/Makefile.am
+++ b/gtk/Makefile.am
@@ -2,6 +2,8 @@
 include $(top_srcdir)/Makefile.decl
 -include $(INTROSPECTION_MAKEFILE)
 INTROSPECTION_GIRS =
+INTROSPECTION_SCANNER_ENV = \
+	CC="$(CC)"
 INTROSPECTION_SCANNER_ARGS = \
 	--add-include-path=../gdk \
 	--warn-all