diff --git a/extensions/Makefile b/extensions/Makefile
index 2976d62..731f5fa 100644
--- a/extensions/Makefile
+++ b/extensions/Makefile
@@ -23,8 +23,8 @@
 	mv $< $@
 
 extensions/ebt_%.o: extensions/ebt_%.c include/ebtables_u.h
-	$(CC) $(CFLAGS) $(PROGSPECS) -c -o $@ $< -I$(KERNEL_INCLUDES)
+	$(CC) $(CFLAGS) $(CFLAGS_SH_LIB) $(PROGSPECS) -c -o $@ $< -I$(KERNEL_INCLUDES)
 
 extensions/ebtable_%.o: extensions/ebtable_%.c
-	$(CC) $(CFLAGS) $(PROGSPECS) -c -o $@ $< -I$(KERNEL_INCLUDES)
+	$(CC) $(CFLAGS) $(CFLAGS_SH_LIB) $(PROGSPECS) -c -o $@ $< -I$(KERNEL_INCLUDES)