diff --git a/llvm/tools/yaml2obj/yaml2elf.cpp b/llvm/tools/yaml2obj/yaml2elf.cpp
index 1792b1288829..ae8dd15f5967 100644
--- a/llvm/tools/yaml2obj/yaml2elf.cpp
+++ b/llvm/tools/yaml2obj/yaml2elf.cpp
@@ -76,7 +76,7 @@ public:
   }
   /// asserts if name is not present in the map
   unsigned get(StringRef Name) const {
-    unsigned Idx;
+    unsigned Idx = 0;
     assert(!lookup(Name, Idx) && "Expected section not found in index");
     return Idx;
   }