diff --git a/frontend/public/locales/en/translation.json b/frontend/public/locales/en/translation.json
index 9811b52..7ed3d2e 100644
--- a/frontend/public/locales/en/translation.json
+++ b/frontend/public/locales/en/translation.json
@@ -100,6 +100,7 @@
     "no_content_type": "No content type available, please create one first",
     "invalid_max_fallback_attempt_limit": "Max fallback attempt limit must have positive value",
     "regex_is_invalid": "Regex is invalid",
+    "regex_is_empty": "Regex cannot be empty",
     "attachment_not_found": "Attachment is not found",
     "title_length_exceeded": "You have reached the maximum length",
     "no_label_found": "No label found",
diff --git a/frontend/public/locales/fr/translation.json b/frontend/public/locales/fr/translation.json
index d06616c..f2390ea 100644
--- a/frontend/public/locales/fr/translation.json
+++ b/frontend/public/locales/fr/translation.json
@@ -100,6 +100,7 @@
     "no_content_type": "Il n'y a aucun type de contenu pour le moment, veuillez en ajouter un.",
     "invalid_max_fallback_attempt_limit": "La limite des tentatives de secours doit être un nombre positif.",
     "regex_is_invalid": "Le regex est invalide",
+    "regex_is_empty": "Le regex ne peut pas être vide",
     "attachment_not_found": "La pièce jointe est introuvable",
     "title_length_exceeded": "Vous avez atteint la longueur maximale",
     "no_label_found": "Aucune étiquette trouvée",
diff --git a/frontend/src/components/visual-editor/form/inputs/triggers/PatternInput.tsx b/frontend/src/components/visual-editor/form/inputs/triggers/PatternInput.tsx
index 2e90c7f..c0152bb 100644
--- a/frontend/src/components/visual-editor/form/inputs/triggers/PatternInput.tsx
+++ b/frontend/src/components/visual-editor/form/inputs/triggers/PatternInput.tsx
@@ -265,26 +265,26 @@ const PatternInput: FC<PatternInputProps> = ({
         ) : null}
         {typeof value === "string" && patternType === "regex" ? (
           <RegexInput
-            {...registerInput(t("message.regex_is_invalid"), idx, {
+            {...registerInput(t("message.regex_is_empty"), idx, {
               validate: (pattern) => {
                 try {
-                  if (
-                    pattern.at(0) === "/" &&
-                    pattern.at(-1) === "/" &&
-                    typeof pattern === "string"
-                  )
-                    new RegExp(pattern.slice(1, -1));
+                  const parsedPattern = new RegExp(pattern.slice(1, -1));
+
+                  if (String(parsedPattern) !== pattern) {
+                    throw t("message.regex_is_invalid");
+                  }
 
                   return true;
                 } catch (_e) {
                   return t("message.regex_is_invalid");
                 }
               },
-              setValueAs: (v) => `/${v}/`,
+              setValueAs: (v) => (isRegex(v) ? v : `/${v}/`),
             })}
             label={t("label.regex")}
             value={value.slice(1, -1)}
             onChange={(v) => onChange(v)}
+            required
           />
         ) : null}
         {typeof value === "string" && patternType === "text" ? (