diff --git a/pugsql/compiler.py b/pugsql/compiler.py
index ea16da1..de4d194 100644
--- a/pugsql/compiler.py
+++ b/pugsql/compiler.py
@@ -53,7 +53,7 @@ def _add_path(self, sqlpath, encoding=None):
         if not os.path.isdir(sqlpath):
             raise ValueError('Directory not found: %s' % sqlpath)
 
-        for sqlfile in glob(os.path.join(sqlpath, '*sql')):
+        for sqlfile in sorted(glob(os.path.join(sqlpath, '*sql'))):
             with open(sqlfile, 'r', encoding=encoding) as f:
                 pugsql = f.read()
 
diff --git a/tests/test_compiler.py b/tests/test_compiler.py
index ac65eb7..f0222bd 100644
--- a/tests/test_compiler.py
+++ b/tests/test_compiler.py
@@ -14,9 +14,9 @@ def test_sets_sqlpaths(self):
 
     def test_function_redefinition(self):
         msg = (
-            'Error loading tests/sql/duplicate-name/foo.sql - a SQL function '
+            'Error loading tests/sql/duplicate-name/foo2.sql - a SQL function '
             'named foo was already defined in '
-            'tests/sql/duplicate-name/foo2.sql.')
+            'tests/sql/duplicate-name/foo.sql.')
         with pytest.raises(ValueError, match=msg):
             compiler.Module('tests/sql/duplicate-name')