diff --git a/src/rules/noUnusedExpressionRule.ts b/src/rules/noUnusedExpressionRule.ts
index dc9168ab1f4..95d11fee57f 100644
--- a/src/rules/noUnusedExpressionRule.ts
+++ b/src/rules/noUnusedExpressionRule.ts
@@ -198,7 +198,7 @@ export class NoUnusedExpressionWalker extends Lint.RuleWalker {
 }
 
 function hasCallExpression(node: ts.Node): boolean {
-    const nodeToCheck = skipParenthesis(node);
+    const nodeToCheck = skipParentheses(node);
 
     if (nodeToCheck.kind === ts.SyntaxKind.CallExpression) {
         return true;
@@ -226,7 +226,7 @@ function isTopLevelExpression(node: ts.BinaryExpression): boolean {
     return nodeToCheck.kind === ts.SyntaxKind.ExpressionStatement;
 }
 
-function skipParenthesis(node: ts.Node): ts.Node {
+function skipParentheses(node: ts.Node): ts.Node {
     let nodeToReturn = node;
 
     while (nodeToReturn.kind === ts.SyntaxKind.ParenthesizedExpression) {
diff --git a/test/rules/no-unused-expression/allow-fast-null-checks/test.ts.lint b/test/rules/no-unused-expression/allow-fast-null-checks/test.ts.lint
index bf5426970a3..c72dcbf6ad3 100644
--- a/test/rules/no-unused-expression/allow-fast-null-checks/test.ts.lint
+++ b/test/rules/no-unused-expression/allow-fast-null-checks/test.ts.lint
@@ -134,4 +134,3 @@ function interactionHandler(e) {
 }
 
 [0]: expected an assignment or function call
-