diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb b/activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb
index 24ee442d3d5f2..092543259f19c 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb
@@ -90,7 +90,7 @@ def query(sql, name = nil) #:nodoc:
         end
 
         # Executes an SQL statement, returning a PG::Result object on success
-        # or raising a PG exception otherwise.
+        # or raising a PG::Error exception otherwise.
         # Note: the PG::Result object is manually memory managed; if you don't
         # need it specifically, you may want consider the <tt>exec_query</tt> wrapper.
         def execute(sql, name = nil)