diff --git a/src/http/ngx_http_script.c b/src/http/ngx_http_script.c
index a2b9f1b7b..7d5001936 100644
--- a/src/http/ngx_http_script.c
+++ b/src/http/ngx_http_script.c
@@ -535,6 +535,10 @@ ngx_http_script_compile(ngx_http_script_compile_t *sc)
                     continue;
                 }
 
+                if (ch == '-' && bracket) {
+                    continue;
+                }
+
                 break;
             }