diff --git a/RuriLib/Models/CData.cs b/RuriLib/Models/CData.cs
index 02f1e00..4d730e0 100644
--- a/RuriLib/Models/CData.cs
+++ b/RuriLib/Models/CData.cs
@@ -83,6 +83,10 @@ namespace RuriLib.Models
                         case RuleType.MustNotContain:
                             valid = !CheckContains(slice, rule.RuleString);
                             break;
+
+                        case RuleType.MustMatchRegex:
+                            valid = Regex.Match(slice, rule.RuleString).Success;
+                            break;
                     }
 
                     if (!valid) return false;
diff --git a/RuriLib/Models/DataRule.cs b/RuriLib/Models/DataRule.cs
index 2158bd8..17ab179 100644
--- a/RuriLib/Models/DataRule.cs
+++ b/RuriLib/Models/DataRule.cs
@@ -23,7 +23,10 @@ namespace RuriLib.Models
         MinLength,
 
         /// <summary>The slice's length must be smaller or equal to a given number.</summary>
-        MaxLength
+        MaxLength,
+
+        /// <summary>The slice must match a given regex pattern.</summary>
+        MustMatchRegex
     }
 
     /// <summary>