diff --git a/llvm/tools/llvm-size/llvm-size.cpp b/llvm/tools/llvm-size/llvm-size.cpp
index e47cfca8c815..bdb118a264e8 100644
--- a/llvm/tools/llvm-size/llvm-size.cpp
+++ b/llvm/tools/llvm-size/llvm-size.cpp
@@ -74,7 +74,7 @@ bool ArchAll = false;
 
 enum RadixTy { octal = 8, decimal = 10, hexadecimal = 16 };
 static cl::opt<unsigned int>
-Radix("-radix", cl::desc("Print size in radix. Only 8, 10, and 16 are valid"),
+Radix("radix", cl::desc("Print size in radix. Only 8, 10, and 16 are valid"),
       cl::init(decimal));
 
 static cl::opt<RadixTy>