diff --git a/coders/jnx.c b/coders/jnx.c
index d29fd0e..2014e9e 100644
--- a/coders/jnx.c
+++ b/coders/jnx.c
@@ -292,10 +292,10 @@
if (*jnx_level_info[i].copyright != '\0')
(void) SetImageProperty(tile_image,"jnx:copyright",
jnx_level_info[i].copyright,exception);
- (void) FormatImageProperty(tile_image,"jnx:northeast","%g,%g",northeast.x,
- northeast.y);
- (void) FormatImageProperty(tile_image,"jnx:southwest","%g,%g",southwest.x,
- southwest.y);
+ (void) FormatImageProperty(tile_image,"jnx:northeast","%.20g,%.20g",
+ northeast.x,northeast.y);
+ (void) FormatImageProperty(tile_image,"jnx:southwest","%.20g,%.20g",
+ southwest.x,southwest.y);
AppendImageToList(&images,tile_image);
}
if (image->progress_monitor != (MagickProgressMonitor) NULL)