diff --git a/lib/StaticAnalyzer/Core/CoreEngine.cpp b/lib/StaticAnalyzer/Core/CoreEngine.cpp
index ea809b7067f17712d3291a927e1431b826e19762..4e2866c56f0eed42e865dfd36522af66285fe420 100644
--- a/lib/StaticAnalyzer/Core/CoreEngine.cpp
+++ b/lib/StaticAnalyzer/Core/CoreEngine.cpp
@@ -313,7 +313,7 @@ void CoreEngine::HandleBlockEdge(const BlockEdge &L, ExplodedNode *Pred) {
     const ReturnStmt *RS = nullptr;
     if (!L.getSrc()->empty()) {
       if (Optional<CFGStmt> LastStmt = L.getSrc()->back().getAs<CFGStmt>()) {
-        if (RS = dyn_cast<ReturnStmt>(LastStmt->getStmt())) {
+        if ((RS = dyn_cast<ReturnStmt>(LastStmt->getStmt()))) {
           if (!RS->getRetValue())
             RS = nullptr;
         }