diff --git a/newsfragments/672.misc b/newsfragments/672.misc
new file mode 100644
index 000000000..f80db30d7
--- /dev/null
+++ b/newsfragments/672.misc
@@ -0,0 +1 @@
+Temporarily disable verbose masking geometry warning.
diff --git a/src/dxtbx/masking/goniometer_shadow_masking.h b/src/dxtbx/masking/goniometer_shadow_masking.h
index 5c0742a01..714bad782 100644
--- a/src/dxtbx/masking/goniometer_shadow_masking.h
+++ b/src/dxtbx/masking/goniometer_shadow_masking.h
@@ -153,9 +153,9 @@ namespace dxtbx { namespace masking {
           }
         }
         if (!valid) {
-          std::cout << "Invalid polygon geometry (" << failure
-                    << "): " << boost::geometry::dsv(poly) << std::endl;
-          std::cout << boost::geometry::dsv(points) << std::endl;
+          // std::cout << "Invalid polygon geometry (" << failure
+          //           << "): " << boost::geometry::dsv(poly) << std::endl;
+          // std::cout << boost::geometry::dsv(points) << std::endl;
           result.push_back(shadow_points);
           continue;
         }