diff --git a/library/Makefile b/library/Makefile
index 6ed5e68613..a2912507da 100644
--- a/library/Makefile
+++ b/library/Makefile
@@ -198,7 +198,7 @@ libmbedcrypto.dll: $(OBJS_CRYPTO)
 
 .c.o:
 	echo "  CC    $<"
-	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) -c $<
+	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) -c $< -o $@
 
 clean:
 ifndef WINDOWS