diff --git a/src/main/java/eu/siacs/conversations/entities/Conversation.java b/src/main/java/eu/siacs/conversations/entities/Conversation.java
index e5580e51a..a0829f04d 100644
--- a/src/main/java/eu/siacs/conversations/entities/Conversation.java
+++ b/src/main/java/eu/siacs/conversations/entities/Conversation.java
@@ -1561,6 +1561,12 @@ public class Conversation extends AbstractEntity implements Blockable, Comparabl
         final var script = locale.getScript();
         for (final var m : messages) {
             final var body = m.getRawBody();
+            try {
+                if (!"Cyrl".equals(script) && body.matches(".*\\p{IsCyrillic}.*")) {
+                    anyMatchSpam = true;
+                    return;
+                }
+            } catch (final java.util.regex.PatternSyntaxException e) {  } // Not supported on old android
             if (body.length() > 320 || (!"Cyrl".equals(script) && body.matches(".*\\p{IsCyrillic}.*")) || body.matches(".*(?:\\n.*\\n.*\\n|[Aa]\\s*d\\s*v\\s*v\\s*e\\s*r\\s*t|[Pp]romotion|[Dd][Dd][Oo][Ss]|[Ee]scrow|payout|seller|write me when will be|[Pp]rii?vee?t|there online|bit\\.ly|goo\\.gl|tinyurl\\.com|tiny\\.cc|lc\\.chat|is\\.gd|soo\\.gd|s2r\\.co|clicky\\.me|budrul\\.com|bc\\.vc|uguu\\.se).*")) {
                 anyMatchSpam = true;
                 return;