diff --git a/xpcom/libxpt/xptcall/tests/TestXPTCInvoke.cpp b/xpcom/libxpt/xptcall/tests/TestXPTCInvoke.cpp
index 463414b6d2b9..a00ac62a1b3c 100644
--- a/xpcom/libxpt/xptcall/tests/TestXPTCInvoke.cpp
+++ b/xpcom/libxpt/xptcall/tests/TestXPTCInvoke.cpp
@@ -37,7 +37,7 @@ public:
 class InvokeTestTarget : public InvokeTestTargetInterface
 {
 public:
-    NS_DECL_ISUPPORTS;
+    NS_DECL_ISUPPORTS
     NS_IMETHOD AddTwoInts(PRInt32 p1, PRInt32 p2, PRInt32* retval);
     NS_IMETHOD MultTwoInts(PRInt32 p1, PRInt32 p2, PRInt32* retval);
 
diff --git a/xpcom/reflect/xptcall/tests/TestXPTCInvoke.cpp b/xpcom/reflect/xptcall/tests/TestXPTCInvoke.cpp
index 463414b6d2b9..a00ac62a1b3c 100644
--- a/xpcom/reflect/xptcall/tests/TestXPTCInvoke.cpp
+++ b/xpcom/reflect/xptcall/tests/TestXPTCInvoke.cpp
@@ -37,7 +37,7 @@ public:
 class InvokeTestTarget : public InvokeTestTargetInterface
 {
 public:
-    NS_DECL_ISUPPORTS;
+    NS_DECL_ISUPPORTS
     NS_IMETHOD AddTwoInts(PRInt32 p1, PRInt32 p2, PRInt32* retval);
     NS_IMETHOD MultTwoInts(PRInt32 p1, PRInt32 p2, PRInt32* retval);