diff --git a/compile.mk b/compile.mk
index dcc6af0d..8df18508 100644
--- a/compile.mk
+++ b/compile.mk
@@ -88,7 +88,7 @@ build/%.m.o: %.m
 
 build/%.mm.o: %.mm
 	@mkdir -p $(@D)
-	$(CC) $(CXXFLAGS) -c -o $@ $<
+	$(CXX) $(CXXFLAGS) -c -o $@ $<
 
 build/%.bin.o: %
 	@mkdir -p $(@D)