diff --git a/jedi/inference/sys_path.py b/jedi/inference/sys_path.py
index a45999f12..5234ac2cd 100644
--- a/jedi/inference/sys_path.py
+++ b/jedi/inference/sys_path.py
@@ -10,6 +10,8 @@
 from jedi import settings
 from jedi import debug
 
+_BUILDOUT_PATH_INSERTION_LIMIT = 10
+
 
 def _abs_path(module_context, path):
     if os.path.isabs(path):
@@ -138,6 +140,8 @@ def discover_buildout_paths(inference_state, script_path):
     for buildout_script_path in _get_buildout_script_paths(script_path):
         for path in _get_paths_from_buildout_script(inference_state, buildout_script_path):
             buildout_script_paths.add(path)
+            if len(buildout_script_paths) >= _BUILDOUT_PATH_INSERTION_LIMIT:
+                break
 
     return buildout_script_paths