diff --git a/webui/cmake/BareosExtractVersionInfo.cmake b/webui/cmake/BareosExtractVersionInfo.cmake
index 3f102b90be4..1c67ac0104c 100644
--- a/webui/cmake/BareosExtractVersionInfo.cmake
+++ b/webui/cmake/BareosExtractVersionInfo.cmake
@@ -25,7 +25,7 @@ IF (NOT DEFINED VERSION_STRING)
   # VERSION_STRING now is something like #define VERSION "18.2.4rc2"
   string(REGEX MATCH \".*\" BAREOS_FULL_VERSION ${VERSION_STRING})
 ELSE()
-  string(REGEX MATCH [0-9.a-zA-Z]+ BAREOS_FULL_VERSION ${VERSION_STRING})
+  string(REGEX MATCH [0-9.a-zA-Z~]+ BAREOS_FULL_VERSION ${VERSION_STRING})
 ENDIF()
 
 string(REGEX MATCH [0-9]+.[0-9]+.[0-9]+  BAREOS_NUMERIC_VERSION ${VERSION_STRING})