diff --git a/src/services/codefixes/helpers.ts b/src/services/codefixes/helpers.ts
index 91a737167de59..0c4db514f8ced 100644
--- a/src/services/codefixes/helpers.ts
+++ b/src/services/codefixes/helpers.ts
@@ -899,6 +899,12 @@ export function tryGetAutoImportableReferenceFromTypeNode(importTypeNode: TypeNo
         if (isLiteralImportTypeNode(node) && node.qualifier) {
             // Symbol for the left-most thing after the dot
             const firstIdentifier = getFirstIdentifier(node.qualifier);
+            if (!firstIdentifier.symbol) {
+                // if symbol is missing then this doesn't come from a synthesized import type node
+                // it has to be an import type node authored by the user and thus it has to be valid
+                // it can't refer to reserved internal symbol names and such
+                return visitEachChild(node, visit, /*context*/ undefined);
+            }
             const name = getNameForExportedSymbol(firstIdentifier.symbol, scriptTarget);
             const qualifier = name !== firstIdentifier.text
                 ? replaceFirstIdentifierOfEntityName(node.qualifier, factory.createIdentifier(name))
diff --git a/tests/cases/fourslash/completionsClassMemberImportTypeNodeParameter1.ts b/tests/cases/fourslash/completionsClassMemberImportTypeNodeParameter1.ts
new file mode 100644
index 0000000000000..65ee02dcf8dcb
--- /dev/null
+++ b/tests/cases/fourslash/completionsClassMemberImportTypeNodeParameter1.ts
@@ -0,0 +1,34 @@
+/// <reference path="fourslash.ts" />
+
+// @module: nodenext
+
+// @Filename: /generation.d.ts
+//// export type GenerationConfigType = { max_length?: number };
+
+// @FileName: /index.d.ts
+//// export declare class PreTrainedModel {
+////   _get_generation_config(
+////     param: import("./generation.js").GenerationConfigType,
+////   ): import("./generation.js").GenerationConfigType;
+//// }
+////
+//// export declare class BlenderbotSmallPreTrainedModel extends PreTrainedModel {
+////   /*1*/
+//// }
+
+verify.completions({
+  marker: "1",
+  includes: [
+    {
+      name: "_get_generation_config",
+      insertText: `_get_generation_config(param: import("./generation.js").GenerationConfigType): import("./generation.js").GenerationConfigType;`,
+      filterText: "_get_generation_config",
+      hasAction: undefined,
+    },
+  ],
+  preferences: {
+    includeCompletionsWithClassMemberSnippets: true,
+    includeCompletionsWithInsertText: true,
+  },
+  isNewIdentifierLocation: true,
+});
diff --git a/tests/cases/fourslash/completionsClassMemberImportTypeNodeParameter2.ts b/tests/cases/fourslash/completionsClassMemberImportTypeNodeParameter2.ts
new file mode 100644
index 0000000000000..764075a757be3
--- /dev/null
+++ b/tests/cases/fourslash/completionsClassMemberImportTypeNodeParameter2.ts
@@ -0,0 +1,31 @@
+/// <reference path="fourslash.ts" />
+
+// @module: nodenext
+
+// @FileName: /index.d.ts
+//// export declare class Cls {
+////   method(
+////     param: import("./doesntexist.js").Foo,
+////   ): import("./doesntexist.js").Foo;
+//// }
+////
+//// export declare class Derived extends Cls {
+////   /*1*/
+//// }
+
+verify.completions({
+  marker: "1",
+  includes: [
+    {
+      name: "method",
+      insertText: `method(param: import("./doesntexist.js").Foo);`,
+      filterText: "method",
+      hasAction: undefined,
+    },
+  ],
+  preferences: {
+    includeCompletionsWithClassMemberSnippets: true,
+    includeCompletionsWithInsertText: true,
+  },
+  isNewIdentifierLocation: true,
+});
diff --git a/tests/cases/fourslash/completionsClassMemberImportTypeNodeParameter3.ts b/tests/cases/fourslash/completionsClassMemberImportTypeNodeParameter3.ts
new file mode 100644
index 0000000000000..5edb4d7478e8b
--- /dev/null
+++ b/tests/cases/fourslash/completionsClassMemberImportTypeNodeParameter3.ts
@@ -0,0 +1,37 @@
+/// <reference path="fourslash.ts" />
+
+// @module: nodenext
+
+// @FileName: /other/foo.d.ts
+//// export declare type Bar = { baz: string };
+
+// @FileName: /other/cls.d.ts
+//// export declare class Cls {
+////   method(
+////     param: import("./foo.js").Bar,
+////   ): import("./foo.js").Bar;
+//// }
+
+// @FileName: /index.d.ts
+//// import { Cls } from "./other/cls.js";
+////
+//// export declare class Derived extends Cls {
+////   /*1*/
+//// }
+
+verify.completions({
+  marker: "1",
+  includes: [
+    {
+      name: "method",
+      insertText: `method(param: import("./other/foo.js").Bar): import("./other/foo.js").Bar;`,
+      filterText: "method",
+      hasAction: undefined,
+    },
+  ],
+  preferences: {
+    includeCompletionsWithClassMemberSnippets: true,
+    includeCompletionsWithInsertText: true,
+  },
+  isNewIdentifierLocation: true,
+});
diff --git a/tests/cases/fourslash/completionsClassMemberImportTypeNodeParameter4.ts b/tests/cases/fourslash/completionsClassMemberImportTypeNodeParameter4.ts
new file mode 100644
index 0000000000000..072725ac2f745
--- /dev/null
+++ b/tests/cases/fourslash/completionsClassMemberImportTypeNodeParameter4.ts
@@ -0,0 +1,34 @@
+/// <reference path="fourslash.ts" />
+
+// @module: nodenext
+
+// @FileName: /other/cls.d.ts
+//// export declare class Cls {
+////   method(
+////     param: import("./doesntexist.js").Foo,
+////   ): import("./doesntexist.js").Foo;
+//// }
+
+// @FileName: /index.d.ts
+//// import { Cls } from "./other/cls.js";
+////
+//// export declare class Derived extends Cls {
+////   /*1*/
+//// }
+
+verify.completions({
+  marker: "1",
+  includes: [
+    {
+      name: "method",
+      insertText: `method(param: import("./doesntexist.js").Foo);`,
+      filterText: "method",
+      hasAction: undefined,
+    },
+  ],
+  preferences: {
+    includeCompletionsWithClassMemberSnippets: true,
+    includeCompletionsWithInsertText: true,
+  },
+  isNewIdentifierLocation: true,
+});