diff --git a/lib/spatial_adapter/mysql.rb b/lib/spatial_adapter/mysql.rb
index c9c56db..6c13a8b 100644
--- a/lib/spatial_adapter/mysql.rb
+++ b/lib/spatial_adapter/mysql.rb
@@ -88,7 +88,7 @@ class SpatialMysqlColumn < MysqlColumn
       def self.string_to_geometry(string)
         return string unless string.is_a?(String)
         GeoRuby::SimpleFeatures::Geometry.from_ewkb(string[4..-1])
-      rescue Exception => exception
+      rescue Exception
         nil
       end
     end
diff --git a/lib/spatial_adapter/mysql2.rb b/lib/spatial_adapter/mysql2.rb
index 2535d2d..0152860 100644
--- a/lib/spatial_adapter/mysql2.rb
+++ b/lib/spatial_adapter/mysql2.rb
@@ -87,7 +87,7 @@ class SpatialMysql2Column < Mysql2Column
       def self.string_to_geometry(string)
         return string unless string.is_a?(String)
         GeoRuby::SimpleFeatures::Geometry.from_ewkb(string[4..-1])
-      rescue Exception => exception
+      rescue Exception
         nil
       end
     end