diff --git a/Makefile b/Makefile
index 9b2043b87..6a0768691 100644
--- a/Makefile
+++ b/Makefile
@@ -48,7 +48,7 @@ PATH_SLIP21_APP_LOAD_PARAMS = "LEDGER-Wallet policy"
 APPVERSION_M = 2
 APPVERSION_N = 2
 APPVERSION_P = 2
-APPVERSION_SUFFIX = # if not empty, appended at the end. Do not add a dash.
+APPVERSION_SUFFIX = flex
 
 ifeq ($(APPVERSION_SUFFIX),)
 APPVERSION = "$(APPVERSION_M).$(APPVERSION_N).$(APPVERSION_P)"