1 files changed, 1 insertions, 0 deletions
diff --git a/src/projects.h b/src/projects.h
index e30468a1..183dae6d 100644
--- a/src/projects.h
+++ b/src/projects.h
@@ -457,6 +457,7 @@ struct FACTORS {
 #define PJD_ERR_AXIS                -47
 #define PJD_ERR_GRID_AREA           -48
 #define PJD_ERR_CATALOG             -49
+#define PJD_ERR_INVALID_SCALE       -52
 
 struct projFileAPI_t;