--- a/xpcom/reflect/xptcall/md/unix/xptcinvoke_linux_m68k.cpp
+++ b/xpcom/reflect/xptcall/md/unix/xptcinvoke_linux_m68k.cpp
@@ -95,17 +95,18 @@ extern "C" {
         }
     }
 }
 
 EXPORT_XPCOM_API(nsresult)
 NS_InvokeByIndex(nsISupports* that, uint32_t methodIndex,
                    uint32_t paramCount, nsXPTCVariant* params)
 {
-    uint32_t result, n;
+    nsresult result;
+    uint32_t n;
 
     n = invoke_count_words(paramCount, params) * 4;
 
  __asm__ __volatile__(
     "subl  %5, %%sp\n\t"      /* make room for params */
     "movel %4, %%sp@-\n\t"
     "movel %3, %%sp@-\n\t"
     "pea   %%sp@(8)\n\t"