diff --git a/mozilla/layout/generic/nsBlockFrame.h b/mozilla/layout/generic/nsBlockFrame.h
index b1c6d9a45cb..8ce3c5e2fe9 100644
--- a/mozilla/layout/generic/nsBlockFrame.h
+++ b/mozilla/layout/generic/nsBlockFrame.h
@@ -226,7 +226,7 @@ protected:
   }
 
   PRBool HaveOutsideBullet() const {
-#ifdef DEBUG_X
+#ifdef DEBUG
     if(mState & NS_BLOCK_FRAME_HAS_OUTSIDE_BULLET) {
       NS_ASSERTION(mBullet,"NS_BLOCK_FRAME_HAS_OUTSIDE_BULLET flag set and no mBullet");
     }
diff --git a/mozilla/layout/html/base/src/nsBlockFrame.h b/mozilla/layout/html/base/src/nsBlockFrame.h
index b1c6d9a45cb..8ce3c5e2fe9 100644
--- a/mozilla/layout/html/base/src/nsBlockFrame.h
+++ b/mozilla/layout/html/base/src/nsBlockFrame.h
@@ -226,7 +226,7 @@ protected:
   }
 
   PRBool HaveOutsideBullet() const {
-#ifdef DEBUG_X
+#ifdef DEBUG
     if(mState & NS_BLOCK_FRAME_HAS_OUTSIDE_BULLET) {
       NS_ASSERTION(mBullet,"NS_BLOCK_FRAME_HAS_OUTSIDE_BULLET flag set and no mBullet");
     }