diff --git a/opts/envfile_test.go b/opts/envfile_test.go
index dd79f60925..bda9dcb6e7 100644
--- a/opts/envfile_test.go
+++ b/opts/envfile_test.go
@@ -162,3 +162,17 @@ HOME
 		t.Fatal("exactly one variable is imported (as the other one is not set at all)")
 	}
 }
+
+// ParseEnvFile with empty variable name
+func TestParseEnvVariableWithNoNameFile(t *testing.T) {
+	content := `# comment=
+=blank variable names are an error case
+`
+	tmpFile := tmpFileWithContent(content, t)
+	defer os.Remove(tmpFile)
+
+	_, err := ParseEnvFile(tmpFile)
+	if nil == err {
+		t.Fatal("if a variable has no name parsing an environment file must fail")
+	}
+}