diff --git a/gnu/lib/libobjc/Makefile b/gnu/lib/libobjc/Makefile
index b3ffc0b24715..65c5c639011e 100644
--- a/gnu/lib/libobjc/Makefile
+++ b/gnu/lib/libobjc/Makefile
@@ -37,6 +37,6 @@ runtime-info.h:
 	    < /dev/null > ${.TARGET}
 
 tconfig.h: ${.CURDIR}/../../usr.bin/cc/cc_tools/Makefile
-	${MAKE} -f ${.ALLSRC} MFILE=${.ALLSRC} ${.TARGET}
+	${MAKE} -f ${.ALLSRC} MFILE=${.ALLSRC} GCCDIR=${GCCDIR} ${.TARGET}
 
 .include <bsd.lib.mk>