diff --git a/core/src/main/java/com/scottlogic/datahelix/generator/core/profile/constraints/atomic/NotEqualToConstraint.java b/core/src/main/java/com/scottlogic/datahelix/generator/core/profile/constraints/atomic/NotEqualToConstraint.java
index 90c39a3a2..da1b54185 100644
--- a/core/src/main/java/com/scottlogic/datahelix/generator/core/profile/constraints/atomic/NotEqualToConstraint.java
+++ b/core/src/main/java/com/scottlogic/datahelix/generator/core/profile/constraints/atomic/NotEqualToConstraint.java
@@ -48,7 +48,7 @@ public FieldSpec toFieldSpec() {
 
     @Override
     public String toString(){
-        return String.format("`%s` = %s", field.getName(), value);
+        return String.format("`%s` != %s", field.getName(), value);
     }
 
     @Override