diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index bc8af9e6322..e279b07bb1f 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -6271,7 +6271,7 @@ namespace ts {
                         Diagnostics.Type_0_is_not_assignable_to_type_1;
                 }
 
-                reportError(message, sourceType, targetType);               
+                reportError(message, sourceType, targetType);
             }
 
             // Compare two types and return