diff --git a/llvm/tools/llvm-size/llvm-size.cpp b/llvm/tools/llvm-size/llvm-size.cpp
index 0d7bf24832670..afb6b2386218e 100644
--- a/llvm/tools/llvm-size/llvm-size.cpp
+++ b/llvm/tools/llvm-size/llvm-size.cpp
@@ -76,7 +76,7 @@ static std::vector<StringRef> ArchFlags;
 static bool ELFCommons;
 static OutputFormatTy OutputFormat;
 static bool DarwinLongFormat;
-static RadixTy Radix;
+static RadixTy Radix = RadixTy::decimal;
 static bool TotalSizes;
 
 static std::vector<std::string> InputFilenames;