diff --git a/Makefile.base.mk b/Makefile.base.mk
index 24852bd..23d5802 100644
--- a/Makefile.base.mk
+++ b/Makefile.base.mk
@@ -157,8 +157,10 @@ endif
 
 # needed for enabling SSE in pffft
 ifeq ($(CPU_I386),true)
+ifneq ($(NOSIMD),true)
 BASE_FLAGS += -Di386
 endif
+endif
 
 # SIMD must always be enabled, even in debug builds
 ifneq ($(NOSIMD),true)