diff --git a/lib/smql_to_ar.rb b/lib/smql_to_ar.rb
index fdf32e9..ce3b61f 100644
--- a/lib/smql_to_ar.rb
+++ b/lib/smql_to_ar.rb
@@ -139,12 +139,11 @@ class SmqlToAR
 
 			def == other
 				other = Col.new other
-				@col = other.col  &&  @as == other.col
+				@col == other.col  &&  @as == other.as
 			end
 
 			def === other
-				other = Col.new other
-				@col == other.col
+				@col == Col.new( other).col
 			end
 		end