diff --git a/version.inc b/version.inc
index 13f77ef57a..55b293281a 100644
--- a/version.inc
+++ b/version.inc
@@ -4,7 +4,7 @@
 set(SLIC3R_APP_NAME "PrusaSlicer")
 set(SLIC3R_APP_KEY "PrusaSlicer")
 set(SLIC3R_VERSION "2.9.0-beta1")
-set(SLIC3R_BUILD_ID "PrusaSlicer-${SLIC3R_VERSION}+UNKNOWN")
+set(SLIC3R_BUILD_ID "PrusaSlicer-${SLIC3R_VERSION}+BOSS")
 set(SLIC3R_RC_VERSION "2,9,0,0")
 set(SLIC3R_RC_VERSION_DOTS "2.9.0.0")