diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyMCInstLower.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyMCInstLower.cpp
index 3dca75dfefac..2ac32d5a356f 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyMCInstLower.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyMCInstLower.cpp
@@ -295,7 +295,7 @@ static unsigned regInstructionToStackInstruction(unsigned OpCode) {
   switch (OpCode) {
   default:
     llvm_unreachable(
-          "unknown WebAssembly instruction in Explicit Locals pass");
+          "unknown WebAssembly instruction in WebAssemblyMCInstLower pass");
 #include "WebAssemblyGenStackifier.inc"
   }
 }