diff --git a/sys/compat/lindebugfs/lindebugfs.c b/sys/compat/lindebugfs/lindebugfs.c
index 6ff9cea6c4e..ab1dc2a0e5e 100644
--- a/sys/compat/lindebugfs/lindebugfs.c
+++ b/sys/compat/lindebugfs/lindebugfs.c
@@ -131,7 +131,7 @@ debugfs_fill(PFS_FILL_ARGS)
 	rc = d->dm_fops->open(&vn, &lf);
 	if (rc < 0) {
 #ifdef INVARIANTS
-		printf("%s:%d open failed with %d\n", __FUNCTION__, __LINE__, rc);
+		printf("%s:%d open failed with %d\n", __func__, __LINE__, rc);
 #endif
 		return (-rc);
 	}
@@ -166,7 +166,7 @@ debugfs_fill(PFS_FILL_ARGS)
 
 	if (rc < 0) {
 #ifdef INVARIANTS
-		printf("%s:%d read/write failed with %d\n", __FUNCTION__, __LINE__, rc);
+		printf("%s:%d read/write failed with %d\n", __func__, __LINE__, rc);
 #endif
 		return (-rc);
 	}