diff --git a/compilerplugins/clang/flatten.cxx b/compilerplugins/clang/flatten.cxx
index 145311144fee..adcc4972fd8f 100644
--- a/compilerplugins/clang/flatten.cxx
+++ b/compilerplugins/clang/flatten.cxx
@@ -141,10 +141,8 @@ bool Flatten::rewrite(const IfStmt* ifStmt)
         conditionString = "!(" + conditionString + ")";
 
     std::string thenString = getSourceAsString(thenRange);
-    bool thenIsCompound = false;
     if (auto compoundStmt = dyn_cast<CompoundStmt>(ifStmt->getThen())) {
         if (compoundStmt->getLBracLoc().isValid()) {
-            thenIsCompound = true;
             thenString = stripOpenAndCloseBrace(thenString);
         }
     }