diff --git a/t/t7400-submodule-basic.sh b/t/t7400-submodule-basic.sh
index 1b8f1dbd3a..dcac364c5f 100755
--- a/t/t7400-submodule-basic.sh
+++ b/t/t7400-submodule-basic.sh
@@ -281,7 +281,7 @@ test_expect_success 'submodule add with ./, /.. and // in path' '
 	test_cmp empty untracked
 '
 
-test_expect_success 'submodule add with \\ in path' '
+test_expect_success !CYGWIN 'submodule add with \\ in path' '
 	test_when_finished "rm -rf parent sub\\with\\backslash" &&
 
 	# Initialize a repo with a backslash in its name