diff --git a/src/filters/pcre.c b/src/filters/pcre.c
index 346ad1f..a3e0eac 100644
--- a/src/filters/pcre.c
+++ b/src/filters/pcre.c
@@ -193,6 +193,7 @@ flush(cfg_t *cfg) {
     free(r);
   }
   cfg->regexps = NULL;
+  cfg->defscore = MATCH_DEFSCORE;
 }
 
 void
diff --git a/src/filters/preg.c b/src/filters/preg.c
index f0f8e22..22efca5 100644
--- a/src/filters/preg.c
+++ b/src/filters/preg.c
@@ -150,6 +150,7 @@ flush(cfg_t *cfg) {
     free(r);
   }
   cfg->regexps = NULL;
+  cfg->defscore = MATCH_DEFSCORE;
 }
 
 void