diff --git a/src/amd/llvm/ac_llvm_helper.cpp b/src/amd/llvm/ac_llvm_helper.cpp
index f9b70e3f38c..5f04813704f 100644
--- a/src/amd/llvm/ac_llvm_helper.cpp
+++ b/src/amd/llvm/ac_llvm_helper.cpp
@@ -310,7 +310,7 @@ LLVMValueRef ac_build_atomic_rmw(struct ac_llvm_context *ctx, LLVMAtomicRMWBinOp
       binop = llvm::AtomicRMWInst::UMin;
       break;
    default:
-      unreachable(!"invalid LLVMAtomicRMWBinOp");
+      unreachable("invalid LLVMAtomicRMWBinOp");
       break;
    }
    unsigned SSID = llvm::unwrap(ctx->context)->getOrInsertSyncScopeID(sync_scope);