--- a/panorama.h
+++ b/panorama.h
@@ -323,7 +323,7 @@
     IMAGE_FORMAT_MIRROR = 7,
     IMAGE_FORMAT_FISHEYE_ORTHOGRAPHIC = 8,
     IMAGE_FORMAT_FISHEYE_STEREOGRAPHIC = 10,
-    IMAGE_FORMAT_FISHEYE_EQUISOLID = 19,
+    IMAGE_FORMAT_FISHEYE_EQUISOLID = 21,
 };
 #define IMAGE_FORMAT_COUNT 9