diff --git a/llvm/tools/llvm-jitlink/llvm-jitlink.cpp b/llvm/tools/llvm-jitlink/llvm-jitlink.cpp
index 34c1b87ae58ad..85cf3a0195964 100644
--- a/llvm/tools/llvm-jitlink/llvm-jitlink.cpp
+++ b/llvm/tools/llvm-jitlink/llvm-jitlink.cpp
@@ -479,8 +479,8 @@ static Error applyHarnessPromotions(Session &S, LinkGraph &G) {
       continue;
 
     if (Sym->getLinkage() == Linkage::Weak) {
-      if (!S.CanonicalWeakDefs.count(*Sym->getName()) ||
-          S.CanonicalWeakDefs[*Sym->getName()] != G.getName()) {
+      auto It = S.CanonicalWeakDefs.find(*Sym->getName());
+      if (It == S.CanonicalWeakDefs.end() || It->second != G.getName()) {
         LLVM_DEBUG({
           dbgs() << "  Externalizing weak symbol " << Sym->getName() << "\n";
         });