diff --git a/src/exif_nikon.c b/src/exif_nikon.c
index 7ee6e86795bb6e12857b6ce547cc3f03ef426936..a223043c7b2acb96c8c586c12a3046e1a3ea5b66 100644
--- a/src/exif_nikon.c
+++ b/src/exif_nikon.c
@@ -212,7 +212,7 @@ static void exn_get_mnote_nikon_18(ExifData *ed, char * buffer, unsigned int max
 
   sscanf(buf, "Flash Exposure Compensation: %f", &data); /* libexif buggy here. fix conversion */
 
-  snprintf(buffer, maxsize, "FlashExposureCompensation: %.1f\n", ((float)((signed char)round(data*6.0))) / 6.0 );
+  snprintf(buffer, maxsize, "FlashExposureCompensation: %+.1f EV\n", ((float)((signed char)round(data*6.0))) / 6.0 );
 }