diff --git a/src/tube-defs.h b/src/tube-defs.h
index 0a3001f7..720fef83 100644
--- a/src/tube-defs.h
+++ b/src/tube-defs.h
@@ -3,7 +3,7 @@
 #ifndef TUBE_DEFS_H
 #define TUBE_DEFS_H
 
-#define RELEASENAME "Indigo-alpha4"
+#define RELEASENAME "Indigo-alpha5"
 
 // If defined, the doorbell is used rather then the mailbox
 #define USE_DOORBELL