diff --git a/moon.mod.json b/moon.mod.json
index c947185..79f99ba 100644
--- a/moon.mod.json
+++ b/moon.mod.json
@@ -1,6 +1,6 @@
 {
   "name": "extism/moonbit-pdk",
-  "version": "0.17.0",
+  "version": "0.18.0",
   "deps": {
     "gmlewis/json": "0.11.0"
   },
diff --git a/pdk/host/host.mbt b/pdk/host/host.mbt
index e2a4df1..6ea89cc 100644
--- a/pdk/host/host.mbt
+++ b/pdk/host/host.mbt
@@ -45,7 +45,13 @@ pub fn output_json_value(j : @json.JsonValue) -> Unit {
 fn set_error_bytes(b : Bytes) -> Unit {
   let mem = output_bytes_to_memory(b)
   @extism.error_set(mem.offset)
-  mem.free()
+  // If the following line is uncommented, the Extism CLI fails with this example:
+  // $ extism call target/wasm/release/build/main/main.wasm greet --input "Benjamin" --wasi
+  // Error: Encountered an unknown error in call to Extism plugin function greet
+  // However, with the line commented out, the Extism CLI responds correctly:
+  // $ extism call target/wasm/release/build/main/main.wasm greet --input "Benjamin" --wasi
+  // Error: Sorry, we don't greet Benjamins!
+  // mem.free()
 }
 
 /// `set_error` converts a MoonBit String (UTF-16) to an Extism string (UTF-8)