diff --git a/coders/dng.c b/coders/dng.c
index bf26e1adc9..6ab07d0934 100644
--- a/coders/dng.c
+++ b/coders/dng.c
@@ -349,7 +349,7 @@ static void LibRawDataError(void *data,const char *magick_unused(file),
       */
       exception=(ExceptionInfo *) data;
       (void) ThrowMagickException(exception,GetMagickModule(),
-        CorruptImageWarning,"Data corrupted at","`%d'",offset);
+        CorruptImageWarning,"Data corrupted at","`%d'",(int) offset);
   }
 }