diff --git a/llvm/tools/llvm-objdump/llvm-objdump.cpp b/llvm/tools/llvm-objdump/llvm-objdump.cpp
--- a/llvm/tools/llvm-objdump/llvm-objdump.cpp
+++ b/llvm/tools/llvm-objdump/llvm-objdump.cpp
@@ -226,7 +226,7 @@
                         cl::Grouping, cl::aliasopt(MachOOpt));
 
 cl::opt<std::string> objdump::MCPU(
-    "mcpu", cl::desc("Target a specific cpu type (-mcpu=help for details)"),
+    "mcpu", cl::desc("Target a specific cpu type"),
     cl::value_desc("cpu-name"), cl::init(""), cl::cat(ObjdumpCat));
 
 cl::list<std::string> objdump::MAttrs("mattr", cl::CommaSeparated,