--- a/git_sizer_test.go
+++ b/git_sizer_test.go
@@ -46,6 +46,7 @@ func sizerExe(t *testing.T) string {
 
 // Smoke test that the program runs.
 func TestExec(t *testing.T) {
+	t.Skip("requires a git repository for testing")
 	cmd := exec.Command(sizerExe(t))
 	output, err := cmd.CombinedOutput()
 	assert.NoErrorf(t, err, "command failed; output: %#v", string(output))