diff --git a/src/c/alloc_2.d b/src/c/alloc_2.d
index f22cdfe70..ef5a0fd1e 100644
--- a/src/c/alloc_2.d
+++ b/src/c/alloc_2.d
@@ -268,7 +268,10 @@ allocate_object_own(register struct ecl_type_information *type_info)
     if( (op = *opp) == 0 ) {
       UNLOCK();
       op = (ptr_t)GENERAL_MALLOC((word)lb, cl_object_kind);
-      if (0 == op) return 0;
+      if (0 == op){
+        ecl_enable_interrupts_env(the_env);
+        return 0;
+      }
       lg = GC_size_map[lb];   /* May have been uninitialized. */
     } else {
       *opp = obj_link(op);