diff --git a/Makefile.include b/Makefile.include
index 37ae45f43..7836f9ffe 100644
--- a/Makefile.include
+++ b/Makefile.include
@@ -121,6 +121,11 @@ $(OBJECTDIR)/%.o: %.c
 	$(CC) $(CFLAGS) -c $< -o $@
 endif
 
+ifndef CUSTOM_RULE_S_TO_OBJECTDIR_O
+$(OBJECTDIR)/%.o: %.S
+	$(AS) $(ASFLAGS) $< -o $@
+endif
+
 ifndef CUSTOM_RULE_C_TO_O
 %.o: %.c
 	$(CC) $(CFLAGS) -c $< -o $@
@@ -131,11 +136,6 @@ ifndef CUSTOM_RULE_C_TO_CO
 	$(CC) $(CFLAGS) -DAUTOSTART_ENABLE -c $< -o $@
 endif
 
-ifndef CUSTOM_RULE_S_TO_OBJECTDIR_O
-$(OBJECTDIR)/%.o: %.S
-	$(AS) $(ASFLAGS) -o $@ $<
-endif
-
 ifndef AROPTS
   AROPTS = rcf
 endif