diff --git a/i.php b/i.php
index d0d70cc84..2fefd30d9 100644
--- a/i.php
+++ b/i.php
@@ -303,7 +303,6 @@ function try_switch_source(DerivativeParams $params, $original_mtime)
       return false; // cannot really know if a watermark is required
     $dsize = $params->compute_final_size($original_size);
     $use_watermark = $params->will_watermark($dsize);
-    ilog($use_watermark, $dsize);
   }
 
   $candidates = array();