diff --git a/wfa.js b/wfa.js
index ef0abda..d785298 100644
--- a/wfa.js
+++ b/wfa.js
@@ -300,10 +300,14 @@
 
 					// func finalizeRef(v ref)
 					"syscall/js.finalizeRef": (v_ref) => {
-						// Note: TinyGo does not support finalizers so this should never be
-						// called.
-						//console.error('syscall/js.finalizeRef not implemented');
-						// for whatever reason this is called by wfajs but doesnt impact the results at all??
+						const id = mem().getUint32(unboxValue(v_ref), true);
+						this._goRefCounts[id]--;
+						if (this._goRefCounts[id] === 0) {
+							const v = this._values[id];
+							this._values[id] = null;
+							this._ids.delete(v);
+							this._idPool.push(id);
+						}
 					},
 
 					// func stringVal(value string) ref