diff --git a/tools/generate_operator_out.py b/tools/generate_operator_out.py
index f1491d8..f3de61c 100755
--- a/tools/generate_operator_out.py
+++ b/tools/generate_operator_out.py
@@ -65,7 +65,7 @@
                     continue
 
                 # Is this the start or end of a namespace?
-                m = re.search(r'^namespace (\S+) \{', raw_line)
+                m = re.search(r'^namespace (\S+) (HIDDEN |EXPORT )?\{', raw_line)
                 if m:
                     namespaces.append(m.group(1))
                     continue