diff --git a/plugins/org.eclipse.epsilon.eol.engine/src/org/eclipse/epsilon/eol/types/EolType.java b/plugins/org.eclipse.epsilon.eol.engine/src/org/eclipse/epsilon/eol/types/EolType.java
index 95413c3..9130bef 100644
--- a/plugins/org.eclipse.epsilon.eol.engine/src/org/eclipse/epsilon/eol/types/EolType.java
+++ b/plugins/org.eclipse.epsilon.eol.engine/src/org/eclipse/epsilon/eol/types/EolType.java
@@ -45,6 +45,8 @@
 	@Override
 	public boolean equals(Object other) {
 		if (this == other) return true;
+		if (other == null) return false;
+		
 		if (this.getClass() != other.getClass()) return false;
 		
 		EolType eolType = (EolType) other;