diff --git a/src/ruby/ext/grpc/rb_call.c b/src/ruby/ext/grpc/rb_call.c
index 5550bb7d5f1..29c4a94816b 100644
--- a/src/ruby/ext/grpc/rb_call.c
+++ b/src/ruby/ext/grpc/rb_call.c
@@ -101,6 +101,7 @@ static void grpc_rb_call_destroy(void *p) {
     return;
   }
   destroy_call((grpc_rb_call *)p);
+  xfree(p);
 }
 
 static size_t md_ary_datasize(const void *p) {