diff --git a/crates/wasm-mutate/src/mutators/codemotion/if_complement.rs b/crates/wasm-mutate/src/mutators/codemotion/if_complement.rs
index 70e91bff88..c17a7e3519 100644
--- a/crates/wasm-mutate/src/mutators/codemotion/if_complement.rs
+++ b/crates/wasm-mutate/src/mutators/codemotion/if_complement.rs
@@ -52,7 +52,7 @@ impl IfComplementWriter {
             }
         } else {
             // Write an unreachable instruction
-            newfunc.instruction(&Instruction::Unreachable);
+            newfunc.instruction(&Instruction::Nop);
         }
         newfunc.instruction(&Instruction::Else);
         for ch in then {