diff --git a/apache2/re_tfns.c b/apache2/re_tfns.c
index 3bfc0be5..63068dae 100644
--- a/apache2/re_tfns.c
+++ b/apache2/re_tfns.c
@@ -57,6 +57,7 @@ static int msre_fn_cmdline_execute(apr_pool_t *mptmp, unsigned char *input,
                 /* replace some characters to space (only one) */
             case ' ':
             case ',':
+            case ';':
             case '\t':
             case '\r':
             case '\n':