diff --git a/js/src/vm/RegExpObject.cpp b/js/src/vm/RegExpObject.cpp
index a5bf4fe8b3..61baadef81 100644
--- a/js/src/vm/RegExpObject.cpp
+++ b/js/src/vm/RegExpObject.cpp
@@ -975,6 +975,8 @@ RegExpShared::discardJitCode()
 void
 RegExpShared::finalize(FreeOp* fop)
 {
+    for (auto& comp : compilationArray)
+        js_free(comp.byteCode);
     for (size_t i = 0; i < tables.length(); i++)
         js_free(tables[i]);
     tables.~JitCodeTables();
diff --git a/js/src/vm/RegExpObject.h b/js/src/vm/RegExpObject.h
index 289c4f0dc9..0056c6aee9 100644
--- a/js/src/vm/RegExpObject.h
+++ b/js/src/vm/RegExpObject.h
@@ -121,7 +121,6 @@ class RegExpShared : public gc::TenuredCell
         uint8_t* byteCode;
 
         RegExpCompilation() : byteCode(nullptr) {}
-        ~RegExpCompilation() { js_free(byteCode); }
 
         bool compiled(ForceByteCodeEnum force = DontForceByteCode) const {
             return byteCode || (force == DontForceByteCode && jitCode);