diff --git a/fstrim.c b/fstrim.c
index 7f83ff7..58fd15e 100644
--- a/fstrim.c
+++ b/fstrim.c
@@ -113,7 +113,7 @@
         }
 #endif
         if (ret) {
-            SLOGE("FIDTRIM ioctl failed on %s (error %d/%s)", fstab->recs[i].mount_point, errno, strerror(errno));
+            SLOGE("%s ioctl failed on %s (error %d/%s)", deep_trim ? "FIDTRIM" : "FITRIM", fstab->recs[i].mount_point, errno, strerror(errno));
             ret = -1;
         } else {
             SLOGI("Trimmed %llu bytes on %s\n", range.len, fstab->recs[i].mount_point);