diff --git a/5.5/docker-entrypoint.sh b/5.5/docker-entrypoint.sh
index 1eb483e5f..0f01acc30 100755
--- a/5.5/docker-entrypoint.sh
+++ b/5.5/docker-entrypoint.sh
@@ -8,7 +8,7 @@ fi
 
 if [ "$1" = 'mysqld' ]; then
 	# Get config
-	DATADIR="$("$@" --verbose --help 2>/dev/null | awk '$1 == "datadir" { print $2; exit }')"
+	DATADIR="$("$@" --verbose --help --log-bin-index=`mktemp -u` 2>/dev/null | awk '$1 == "datadir" { print $2; exit }')"
 
 	if [ ! -d "$DATADIR/mysql" ]; then
 		if [ -z "$MYSQL_ROOT_PASSWORD" -a -z "$MYSQL_ALLOW_EMPTY_PASSWORD" -a -z "$MYSQL_RANDOM_ROOT_PASSWORD" ]; then
diff --git a/5.6/docker-entrypoint.sh b/5.6/docker-entrypoint.sh
index 77feab06c..90833a3ee 100755
--- a/5.6/docker-entrypoint.sh
+++ b/5.6/docker-entrypoint.sh
@@ -8,7 +8,7 @@ fi
 
 if [ "$1" = 'mysqld' ]; then
 	# Get config
-	DATADIR="$("$@" --verbose --help 2>/dev/null | awk '$1 == "datadir" { print $2; exit }')"
+	DATADIR="$("$@" --verbose --help --log-bin-index=`mktemp -u` 2>/dev/null | awk '$1 == "datadir" { print $2; exit }')"
 
 	if [ ! -d "$DATADIR/mysql" ]; then
 		if [ -z "$MYSQL_ROOT_PASSWORD" -a -z "$MYSQL_ALLOW_EMPTY_PASSWORD" -a -z "$MYSQL_RANDOM_ROOT_PASSWORD" ]; then