diff --git a/config.mak.uname b/config.mak.uname
index 63a0ccc990..b3f0df6e3f 100644
--- a/config.mak.uname
+++ b/config.mak.uname
@@ -364,7 +364,6 @@ ifeq ($(uname_S),Windows)
 	NO_REGEX = YesPlease
 	NO_GETTEXT = YesPlease
 	NO_PYTHON = YesPlease
-	BLK_SHA1 = YesPlease
 	ETAGS_TARGET = ETAGS
 	NO_INET_PTON = YesPlease
 	NO_INET_NTOP = YesPlease