diff --git a/src/compiler/utilities.ts b/src/compiler/utilities.ts
index 40cb2cc96e8..7439bd21890 100644
--- a/src/compiler/utilities.ts
+++ b/src/compiler/utilities.ts
@@ -1864,7 +1864,7 @@ namespace ts {
     }
 
     export function getRightMostAssignedExpression(node: Expression): Expression {
-        while (isAssignmentExpression(node, /*excludeCompoundAssignements*/ true)) {
+        while (isAssignmentExpression(node, /*excludeCompoundAssignments*/ true)) {
             node = node.right;
         }
         return node;