diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index 18e57303c12..332e4a7fdc1 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -7257,7 +7257,7 @@ namespace ts {
                 accessExpression && checkThatExpressionIsProperSymbolReference(accessExpression.argumentExpression, indexType, /*reportError*/ false) ?
                     getPropertyNameForKnownSymbolName((<Identifier>(<PropertyAccessExpression>accessExpression.argumentExpression).name).text) :
                     undefined;
-            if (propName) {
+            if (propName !== undefined) {
                 const prop = getPropertyOfType(objectType, propName);
                 if (prop) {
                     if (accessExpression) {
diff --git a/tests/baselines/reference/noImplicitAnyStringIndexerOnObject.errors.txt b/tests/baselines/reference/noImplicitAnyStringIndexerOnObject.errors.txt
index 8a068048f3b..b3f3b4bc6e0 100644
--- a/tests/baselines/reference/noImplicitAnyStringIndexerOnObject.errors.txt
+++ b/tests/baselines/reference/noImplicitAnyStringIndexerOnObject.errors.txt
@@ -4,4 +4,5 @@ tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(1,9): error TS7017: E
 ==== tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts (1 errors) ====
     var x = {}["hello"];
             ~~~~~~~~~~~
-!!! error TS7017: Element implicitly has an 'any' type because type '{}' has no index signature.
\ No newline at end of file
+!!! error TS7017: Element implicitly has an 'any' type because type '{}' has no index signature.
+    var y: string = { '': 'foo' }[''];
\ No newline at end of file
diff --git a/tests/baselines/reference/noImplicitAnyStringIndexerOnObject.js b/tests/baselines/reference/noImplicitAnyStringIndexerOnObject.js
index cc2309192e1..2ea3291e5db 100644
--- a/tests/baselines/reference/noImplicitAnyStringIndexerOnObject.js
+++ b/tests/baselines/reference/noImplicitAnyStringIndexerOnObject.js
@@ -1,5 +1,7 @@
 //// [noImplicitAnyStringIndexerOnObject.ts]
-var x = {}["hello"];
+var x = {}["hello"];
+var y: string = { '': 'foo' }[''];
 
 //// [noImplicitAnyStringIndexerOnObject.js]
 var x = {}["hello"];
+var y = { '': 'foo' }[''];
diff --git a/tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts b/tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts
index 814c6d2fa6d..9a84cc328b2 100644
--- a/tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts
+++ b/tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts
@@ -1,3 +1,4 @@
 // @noimplicitany: true
 
-var x = {}["hello"];
\ No newline at end of file
+var x = {}["hello"];
+var y: string = { '': 'foo' }[''];
\ No newline at end of file