diff --git a/10.1/root/usr/share/container-scripts/mysql/common.sh b/10.1/root/usr/share/container-scripts/mysql/common.sh
index 7f985662..f9f7fb9a 100644
--- a/10.1/root/usr/share/container-scripts/mysql/common.sh
+++ b/10.1/root/usr/share/container-scripts/mysql/common.sh
@@ -173,7 +173,7 @@ function wait_for_mysql_master() {
 # Converts string version to the integer format (5.5.33 is converted to 505,
 # 10.1.23-MariaDB is converted into 1001, etc.
 function version2number() {
-  local version_major=${1%.*}
+  local version_major=$(echo "$1" | grep -o -e '^[0-9]*\.[0-9]*')
   printf %d%02d ${version_major%%.*} ${version_major##*.}
 }
 
@@ -184,8 +184,7 @@ function mysqld_version() {
 
 # Returns version from the daemon in integer format
 function mysqld_compat_version() {
-  local compat_version=$(mysqld_version)
-  echo $(version2number $(mysqld_version))
+  version2number $(mysqld_version)
 }
 
 # Returns version from the datadir