diff --git a/data/conf/rspamd/local.d/antivirus.conf b/data/conf/rspamd/local.d/antivirus.conf
index 8c46821f..c8d31d1e 100644
--- a/data/conf/rspamd/local.d/antivirus.conf
+++ b/data/conf/rspamd/local.d/antivirus.conf
@@ -7,4 +7,5 @@ clamav {
   type = "clamav";
   log_clean = true;
   servers = "clamd:3310";
+  max_size = 20971520;
 }
diff --git a/data/conf/rspamd/local.d/fuzzy_group.conf b/data/conf/rspamd/local.d/fuzzy_group.conf
index 6b3390c6..f3effe4e 100644
--- a/data/conf/rspamd/local.d/fuzzy_group.conf
+++ b/data/conf/rspamd/local.d/fuzzy_group.conf
@@ -3,9 +3,9 @@ symbols = {
         weight = 2.0;
     }
     "LOCAL_FUZZY_DENIED" {
-        weight = 10.0;
+        weight = 15.0;
     }
     "LOCAL_FUZZY_WHITE" {
-        weight = -3.4;
+        weight = -10.0;
     }
 }