diff --git a/libntfs/runlist.c b/libntfs/runlist.c
index 89095988..e6fb0ae0 100644
--- a/libntfs/runlist.c
+++ b/libntfs/runlist.c
@@ -1635,7 +1635,7 @@ int ntfs_rl_sparse(runlist *rl)
 	runlist *rlc;
 
 	if (!rl) {
-		Dprintf("%s(): Ivalid argument passed.\n");
+		Dprintf("%s(): Ivalid argument passed.\n", __FUNCTION__);
 		errno = EINVAL;
 		return -1;
 	}
@@ -1666,7 +1666,7 @@ s64 ntfs_rl_get_compressed_size(ntfs_volume *vol, runlist *rl)
 	s64 ret = 0;
 
 	if (!rl) {
-		Dprintf("%s(): Ivalid argument passed.\n");
+		Dprintf("%s(): Ivalid argument passed.\n", __FUNCTION__);
 		errno = EINVAL;
 		return -1;
 	}