diff --git a/Makefile b/Makefile
index e66a8a2..04ebfe4 100644
--- a/Makefile
+++ b/Makefile
@@ -37,7 +37,7 @@ else
 endif
 
 ifeq ($(GOHOSTARCH),amd64)
-        ifneq ($(OS_detected),SunOS)
+	ifeq ($(OS_detected),$(filter $(OS_detected),Linux FreeBSD Darwin Windows))
                 # Only supported on amd64
                 test-flags := -race
         endif