diff --git a/src/pg/test/expected/01_install_test.out b/src/pg/test/expected/01_install_test.out
index 99da48c..4851fd3 100644
--- a/src/pg/test/expected/01_install_test.out
+++ b/src/pg/test/expected/01_install_test.out
@@ -1,5 +1,6 @@
 -- Install dependencies
 CREATE EXTENSION postgis;
+CREATE EXTENSION plpythonu;
 CREATE EXTENSION cartodb;
 -- Install the extension
 CREATE EXTENSION observatory VERSION 'dev';
diff --git a/src/pg/test/sql/01_install_test.sql b/src/pg/test/sql/01_install_test.sql
index 58502b1..f46a6e0 100644
--- a/src/pg/test/sql/01_install_test.sql
+++ b/src/pg/test/sql/01_install_test.sql
@@ -1,5 +1,6 @@
 -- Install dependencies
 CREATE EXTENSION postgis;
+CREATE EXTENSION plpythonu;
 CREATE EXTENSION cartodb;
 
 -- Install the extension