diff --git a/DockerEntrypoint.sh b/DockerEntrypoint.sh
index 2e5dd750..38786b14 100644
--- a/DockerEntrypoint.sh
+++ b/DockerEntrypoint.sh
@@ -22,7 +22,7 @@ EOF
 
     cat > /etc/fail2ban/filter.d/3x-ipl.conf << 'EOF'
 [Definition]
-datepattern = ^%Y/%m/%d %H:%M:%S
+datepattern = ^%%Y/%%m/%%d %%H:%%M:%%S
 failregex   = \[LIMIT_IP\]\s*Email\s*=\s*<F-USER>.+</F-USER>\s*\|\|\s*Disconnecting OLD IP\s*=\s*<ADDR>\s*\|\|\s*Timestamp\s*=\s*\d+
 ignoreregex =
 EOF