diff --git a/src/fileformats.c b/src/fileformats.c
index 47c9aea3..b868fc4f 100644
--- a/src/fileformats.c
+++ b/src/fileformats.c
@@ -2301,6 +2301,7 @@ void Save_IFF(T_IO_Context * context)
       bit_depth++;
       temp_byte>>=1;
     } while (temp_byte);
+    GFX2_Log(GFX2_DEBUG, "Saving ILBM with bit_depth = %d\n", bit_depth);
   }
   else // FORMAT_PBM
   {