diff --git a/Makefile b/Makefile
index e830bc7445..cabde8177e 100644
--- a/Makefile
+++ b/Makefile
@@ -416,18 +416,17 @@ ifeq ($(uname_S),SunOS)
 	NO_STRCASESTR = YesPlease
 	NO_MEMMEM = YesPlease
 	NO_HSTRERROR = YesPlease
+	NO_MKDTEMP = YesPlease
 	ifeq ($(uname_R),5.8)
 		NEEDS_LIBICONV = YesPlease
 		NO_UNSETENV = YesPlease
 		NO_SETENV = YesPlease
-		NO_MKDTEMP = YesPlease
 		NO_C99_FORMAT = YesPlease
 		NO_STRTOUMAX = YesPlease
 	endif
 	ifeq ($(uname_R),5.9)
 		NO_UNSETENV = YesPlease
 		NO_SETENV = YesPlease
-		NO_MKDTEMP = YesPlease
 		NO_C99_FORMAT = YesPlease
 		NO_STRTOUMAX = YesPlease
 	endif