diff --git a/coders/tiff.c b/coders/tiff.c
index dfe1af9..3b06e3e 100644
--- a/coders/tiff.c
+++ b/coders/tiff.c
@@ -620,7 +620,7 @@
           rational;
 
         if (TIFFGetField(tiff,exif_info[i].tag,&rational) != 0)
-          (void) FormatMagickString(value,MaxTextExtent,"%.15g",rational);
+          (void) FormatMagickString(value,MaxTextExtent,"%g",rational);
         break;
       }
       default: