diff --git a/tests/regression_tests/white_plane/geometry.xml b/tests/regression_tests/white_plane/geometry.xml
new file mode 100644
index 0000000000..b8be4b59dc
--- /dev/null
+++ b/tests/regression_tests/white_plane/geometry.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0"?>
+<geometry>
+
+  <!-- Reflective box -->
+  <surface id="1" type="x-plane" coeffs="-5" boundary="white"/>
+  <surface id="2" type="x-plane" coeffs="5" boundary="white"/>
+  <surface id="3" type="y-plane" coeffs="-5" boundary="white"/>
+  <surface id="4" type="y-plane" coeffs="5" boundary="white"/>
+  <surface id="5" type="z-plane" coeffs="-5" boundary="white"/>
+  <surface id="6" type="z-plane" coeffs="5" boundary="white"/>
+  <cell id="1" material="1" region="1 -2 3 -4 5 -6" />
+    
+</geometry>
diff --git a/tests/regression_tests/white_plane/results_true.dat b/tests/regression_tests/white_plane/results_true.dat
new file mode 100644
index 0000000000..b80361ced1
--- /dev/null
+++ b/tests/regression_tests/white_plane/results_true.dat
@@ -0,0 +1,2 @@
+k-combined:
+2.268730E+00 4.470768E-03