diff --git a/llvm-backend/src/main/java/org/kframework/backend/llvm/LLVMKompileOptions.java b/llvm-backend/src/main/java/org/kframework/backend/llvm/LLVMKompileOptions.java
index 9a7732d2572..9893c18768d 100644
--- a/llvm-backend/src/main/java/org/kframework/backend/llvm/LLVMKompileOptions.java
+++ b/llvm-backend/src/main/java/org/kframework/backend/llvm/LLVMKompileOptions.java
@@ -106,4 +106,10 @@ public List<String> convert(String str) {
       description = "Emit proof hint instrumentation code into the generated interpreter",
       hidden = true)
   public boolean enableProofHints;
+
+  @Parameter(
+      names = "--llvm-mutable-bytes",
+      description = "Use a faster, unsound representation for byte arrays on the LLVM backend",
+      hidden = true)
+  public boolean llvmMutableBytes;
 }