diff --git a/server.py b/server.py
index 786801d..48e0f56 100644
--- a/server.py
+++ b/server.py
@@ -59,7 +59,7 @@ def execute_code(code, request_obj, environment):
             'pow': pow, 'range': range, 'repr': repr, 'reversed': reversed,
             'round': round, 'set': set, 'slice': slice, 'sorted': sorted,
             'str': str, 'sum': sum, 'super': super, 'tuple': tuple, 'type': type,
-            'zip': zip,
+            'zip': zip, 'base64': base64,
             'BaseException': BaseException,
             'Exception': Exception,
             'ArithmeticError': ArithmeticError,