diff --git a/tests/bugs/modalg_7/bug28967 b/tests/bugs/modalg_7/bug28967
new file mode 100644
index 0000000000..5915af5e96
--- /dev/null
+++ b/tests/bugs/modalg_7/bug28967
@@ -0,0 +1,16 @@
+puts "============"
+puts "OCC28967"
+puts "============"
+puts ""
+######################################################
+# Boolean cut fails the first time, works the second time
+######################################################
+
+restore [locate_data_file bug28967_original.brep] original
+restore [locate_data_file bug28967_envelope.brep] envelope
+
+bcut result original envelope
+checkshape result
+
+bcut result original envelope
+checkshape result