diff --git a/cli.js b/cli.js
index e05211da..cd1dd423 100644
--- a/cli.js
+++ b/cli.js
@@ -119,7 +119,7 @@ const printHelp = cliParams.delete("help");
 const dumpTestList = cliParams.delete("dumpTestList");
 
 if (cliArgs.length) {
-    let tests = cliParams.has("test") ? cliParams.get("tests").split(",") : []
+    let tests = cliParams.has("test") ? cliParams.get("test").split(",") : []
     tests = tests.concat(cliArgs);
     cliParams.set("test", tests.join(","));
 }
diff --git a/tests/run-shell.mjs b/tests/run-shell.mjs
index dedb2cc6..8b061b94 100644
--- a/tests/run-shell.mjs
+++ b/tests/run-shell.mjs
@@ -81,6 +81,13 @@ const TESTS = [
             return runCLITest("Grouped with Details", shell_binary, "SunSpider", "--group-details");
         },
     },
+    {
+        name: "Test Flag With Positional Args",
+        tags: ["all", "main", "test-flag"],
+        run(shell_binary) {
+            return runCLITest("Test Flag With Positional Args", shell_binary, "--test=proxy-mobx", "proxy");
+        },
+    },
     {
         name: "Disabled Suite",
         tags: ["all", "disabled"],