diff --git a/src/exceptions/IllegalTypeException.java b/src/exceptions/IllegalTypeException.java
index cef3cc9..ea73b66 100644
--- a/src/exceptions/IllegalTypeException.java
+++ b/src/exceptions/IllegalTypeException.java
@@ -2,6 +2,10 @@
 
 public class IllegalTypeException extends RuntimeException {
 
+	public IllegalTypeException() {
+		super("Term type is illegal");
+	}
+	
 	public IllegalTypeException(String msg) {
 		super(msg);
 	}