diff --git a/linter-4.2/src/TypeScriptLinter.ts b/linter-4.2/src/TypeScriptLinter.ts
index 27442da9f6353270955b0c54de49988c6273e5b3..5651cbcfbfdc9a5bbbfcf52c6be5595215aff00c 100644
--- a/linter-4.2/src/TypeScriptLinter.ts
+++ b/linter-4.2/src/TypeScriptLinter.ts
@@ -693,20 +693,16 @@ export class TypeScriptLinter {
     ) {
       // We can use literals as property names only when creating Record or any interop instances.
       let isRecordObjectInitializer = false;
-      let isDynamicLiteralInitializer = false;
+      let isDynamic = false;
       if (ts.isPropertyAssignment(node)) {
-        let objectLiteralType = this.tsTypeChecker.getContextualType(
-          node.parent
-        );
-        isRecordObjectInitializer =
-          !!objectLiteralType &&
-          this.tsUtils.isStdRecordType(objectLiteralType);
-        isDynamicLiteralInitializer = this.tsUtils.isDynamicLiteralInitializer(
-          node.parent
-        );
+        let objectLiteralType = this.tsTypeChecker.getContextualType(node.parent);
+        if (objectLiteralType) {
+          isRecordObjectInitializer = this.tsUtils.isStdRecordType(objectLiteralType);
+          isDynamic = this.tsUtils.isLibraryType(objectLiteralType) || this.tsUtils.isDynamicLiteralInitializer(node.parent);
+        }
       }
 
-      if (!isRecordObjectInitializer && !isDynamicLiteralInitializer) {
+      if (!isRecordObjectInitializer && !isDynamic) {
         let autofix: Autofix[] | undefined =
           Autofixer.fixLiteralAsPropertyName(node);
         let autofixable = autofix != undefined;
diff --git a/linter-4.2/test/dynamic_lib.d.ts b/linter-4.2/test/dynamic_lib.d.ts
index e3da589b5418ec259aa310a41fea0f454f17ede3..843931397eaf4c1fce6ff89f458826d49642771c 100644
--- a/linter-4.2/test/dynamic_lib.d.ts
+++ b/linter-4.2/test/dynamic_lib.d.ts
@@ -93,3 +93,7 @@ declare class B {
 }
 
 export declare function bad_func(): A & B;
+
+export type IndexedSignatureType = {
+    [key: string]: string;
+}
\ No newline at end of file
diff --git a/linter-4.2/test/dynamic_object_literals.ts b/linter-4.2/test/dynamic_object_literals.ts
index ea7f9759a2e8cf76d1eb0dd81536959bfcf1beeb..fae9413ea1d4ccb581327bddbdda25cb9c805912 100644
--- a/linter-4.2/test/dynamic_object_literals.ts
+++ b/linter-4.2/test/dynamic_object_literals.ts
@@ -24,7 +24,8 @@ import {
     dynamic_array,
     padding,
     margin,
-    position
+    position,
+    IndexedSignatureType
 } from "./dynamic_lib"
 
 function main(): void {
@@ -84,4 +85,13 @@ dynamic_array.splice(2, 0, {a: 1, b: '2'});
 // #13550 - allow literals as property names in dynamic context
 padding({'top': '0px', 'right': '5px', 'bottom': '10px', 'left': '15px'});
 margin({'top': '10px', 'right': '20px', 'bottom': '30px', 'left': '40px'});
-position({'x': '20', 'y': '40'});
\ No newline at end of file
+position({'x': '20', 'y': '40'});
+
+// allow literal as property name for type aliases that come from interop
+function typeAliasLitAsPropName(): IndexedSignatureType {
+    return {
+        'a': '1',
+        'b': '2',
+        'c': '3'
+    }
+}
\ No newline at end of file
diff --git a/linter/src/TypeScriptLinter.ts b/linter/src/TypeScriptLinter.ts
index 15d018ed5999142bb38be27095e9792ba21f180b..039e904b8b8a0c53112a6ff265f987683adbef61 100644
--- a/linter/src/TypeScriptLinter.ts
+++ b/linter/src/TypeScriptLinter.ts
@@ -596,14 +596,16 @@ export class TypeScriptLinter {
     if (propName && (propName.kind === ts.SyntaxKind.NumericLiteral || propName.kind === ts.SyntaxKind.StringLiteral)) {
       // We can use literals as property names only when creating Record or any interop instances.
       let isRecordObjectInitializer = false;
-      let isDynamicLiteralInitializer = false;
+      let isDynamic = false;
       if (ts.isPropertyAssignment(node)) {
         let objectLiteralType = this.tsTypeChecker.getContextualType(node.parent);
-        isRecordObjectInitializer = !!objectLiteralType && this.tsUtils.isStdRecordType(objectLiteralType);
-        isDynamicLiteralInitializer = this.tsUtils.isDynamicLiteralInitializer(node.parent);
+        if (objectLiteralType) {
+          isRecordObjectInitializer = this.tsUtils.isStdRecordType(objectLiteralType);
+          isDynamic = this.tsUtils.isLibraryType(objectLiteralType) || this.tsUtils.isDynamicLiteralInitializer(node.parent);
+        }
       }
 
-      if (!isRecordObjectInitializer && !isDynamicLiteralInitializer) {
+      if (!isRecordObjectInitializer && !isDynamic) {
         let autofix : Autofix[] | undefined = Autofixer.fixLiteralAsPropertyName(node);
         let autofixable = autofix != undefined;
         if (!this.autofixesInfo.shouldAutofix(node, FaultID.LiteralAsPropertyName)) {
diff --git a/linter/test/dynamic_lib.d.ts b/linter/test/dynamic_lib.d.ts
index e3da589b5418ec259aa310a41fea0f454f17ede3..843931397eaf4c1fce6ff89f458826d49642771c 100644
--- a/linter/test/dynamic_lib.d.ts
+++ b/linter/test/dynamic_lib.d.ts
@@ -93,3 +93,7 @@ declare class B {
 }
 
 export declare function bad_func(): A & B;
+
+export type IndexedSignatureType = {
+    [key: string]: string;
+}
\ No newline at end of file
diff --git a/linter/test/dynamic_object_literals.ts b/linter/test/dynamic_object_literals.ts
index ea7f9759a2e8cf76d1eb0dd81536959bfcf1beeb..fae9413ea1d4ccb581327bddbdda25cb9c805912 100644
--- a/linter/test/dynamic_object_literals.ts
+++ b/linter/test/dynamic_object_literals.ts
@@ -24,7 +24,8 @@ import {
     dynamic_array,
     padding,
     margin,
-    position
+    position,
+    IndexedSignatureType
 } from "./dynamic_lib"
 
 function main(): void {
@@ -84,4 +85,13 @@ dynamic_array.splice(2, 0, {a: 1, b: '2'});
 // #13550 - allow literals as property names in dynamic context
 padding({'top': '0px', 'right': '5px', 'bottom': '10px', 'left': '15px'});
 margin({'top': '10px', 'right': '20px', 'bottom': '30px', 'left': '40px'});
-position({'x': '20', 'y': '40'});
\ No newline at end of file
+position({'x': '20', 'y': '40'});
+
+// allow literal as property name for type aliases that come from interop
+function typeAliasLitAsPropName(): IndexedSignatureType {
+    return {
+        'a': '1',
+        'b': '2',
+        'c': '3'
+    }
+}
\ No newline at end of file