diff --git a/configure.py b/configure.py
index ab38cdd..de564d5 100644
--- a/configure.py
+++ b/configure.py
@@ -184,6 +184,8 @@
     ]
 
   all_paths = set(python_paths + library_paths)
+  # Sort set so order is deterministic
+  all_paths = sorted(all_paths)
 
   paths = []
   for path in all_paths: