diff --git a/CMakeLists.txt b/CMakeLists.txt
index ec0fbb3dc..1a8d557b5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,8 +7,8 @@ cmake_policy(SET CMP0074 NEW)
 project(dfhack)
 
 # set up versioning.
-set(DF_VERSION "50.08")
-set(DFHACK_RELEASE "r2rc1")
+set(DF_VERSION "50.08sdl2-5")
+set(DFHACK_RELEASE "beta1")
 set(DFHACK_PRERELEASE TRUE)
 
 set(DFHACK_VERSION "${DF_VERSION}-${DFHACK_RELEASE}")