diff --git a/Makefile.common b/Makefile.common
index 994be50453..2d32b4e869 100644
--- a/Makefile.common
+++ b/Makefile.common
@@ -146,17 +146,17 @@ ifneq ($(findstring Darwin,$(OS)),)
    ifeq ($(ARCH),arm64)
       DARWINFLAGS  = -mmacosx-version-min=10.15 -stdlib=libc++ # macOS  (Metal, ARM 64bit)
       DARWINFLAGS += -arch arm64
-   else ifeq($(ARCH),x86_64)
+   else ifeq ($(ARCH),x86_64)
       ifeq ($(HAVE_METAL),1)
          DARWINFLAGS  = -mmacosx-version-min=10.13 -stdlib=libc++
       else
          DARWINFLAGS  = -mmacosx-version-min=10.7  -stdlib=libc++
       endif
       DARWINFLAGS    += -arch x86_64
-   else ifeq($(ARCH),x86)
+   else ifeq ($(ARCH),x86)
       DARWINFLAGS  = -mmacosx-version-min=10.6
       DARWINFLAGS += -arch x86
-   else ifeq($(ARCH),ppc)
+   else ifeq ($(ARCH),ppc)
       DARWINFLAGS  = -mmacosx-version-min=10.5
       DARWINFLAGS += -arch ppc
    endif