diff --git a/lib/bitmap.c b/lib/bitmap.c
index 0f2f845..4387e3c 100644
--- a/lib/bitmap.c
+++ b/lib/bitmap.c
@@ -93,7 +93,7 @@
 		dst[k] = ~src[k];
 
 	if (bits % BITS_PER_LONG)
-		dst[k] = ~src[k] & BITMAP_LAST_WORD_MASK(bits);
+		dst[k] = ~src[k];
 }
 EXPORT_SYMBOL(__bitmap_complement);