diff --git a/tests/format/js/import-assertions/__snapshots__/jsfmt.spec.js.snap b/tests/format/js/import-assertions/__snapshots__/jsfmt.spec.js.snap
index bd4aa50ec939..0f2a1173a148 100644
--- a/tests/format/js/import-assertions/__snapshots__/jsfmt.spec.js.snap
+++ b/tests/format/js/import-assertions/__snapshots__/jsfmt.spec.js.snap
@@ -101,6 +101,34 @@ import json from "./foo.json" assert { type: "json", type: "bar" };
 ================================================================================
 `;
 
+exports[`non-type.js [espree] format 1`] = `
+"Unexpected token assert (1:28)
+> 1 | import foo from \\"foo.json\\" assert { lazy: \\"true\\" };
+    |                            ^
+  2 |"
+`;
+
+exports[`non-type.js [meriyah] format 1`] = `
+"[1:33]: Unexpected token: 'identifier' (1:33)
+> 1 | import foo from \\"foo.json\\" assert { lazy: \\"true\\" };
+    |                                 ^
+  2 |"
+`;
+
+exports[`non-type.js format 1`] = `
+====================================options=====================================
+parsers: ["babel"]
+printWidth: 80
+                                                                                | printWidth
+=====================================input======================================
+import foo from "foo.json" assert { lazy: "true" };
+
+=====================================output=====================================
+import foo from "foo.json" assert { lazy: "true" };
+
+================================================================================
+`;
+
 exports[`not-import-assertions.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel"]
diff --git a/tests/format/js/import-assertions/jsfmt.spec.js b/tests/format/js/import-assertions/jsfmt.spec.js
index 69aab7bca670..60cc369735ce 100644
--- a/tests/format/js/import-assertions/jsfmt.spec.js
+++ b/tests/format/js/import-assertions/jsfmt.spec.js
@@ -7,6 +7,7 @@ run_spec(__dirname, ["babel"], {
       "static-import.js",
       "re-export.js",
       "without-from.js",
+      "non-type.js",
     ],
     meriyah: [
       "dynamic-import.js",
@@ -15,6 +16,7 @@ run_spec(__dirname, ["babel"], {
       "static-import.js",
       "re-export.js",
       "without-from.js",
+      "non-type.js",
     ],
   },
 });
diff --git a/tests/format/js/import-assertions/non-type.js b/tests/format/js/import-assertions/non-type.js
new file mode 100644
index 000000000000..bdcedd93bb26
--- /dev/null
+++ b/tests/format/js/import-assertions/non-type.js
@@ -0,0 +1 @@
+import foo from "foo.json" assert { lazy: "true" };