diff --git a/tests/regression_tests/source_mcpl_file/geometry.xml b/tests/regression_tests/source_mcpl_file/geometry.xml
new file mode 100644
index 0000000000..bc56030e18
--- /dev/null
+++ b/tests/regression_tests/source_mcpl_file/geometry.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0"?>
+<geometry>
+
+  <!-- Sphere with radius 10 -->
+  <surface id="1" type="sphere" coeffs="0 0 0 10" boundary="vacuum"/>
+  <cell id="1" material="1" region="-1" />
+    
+</geometry>
diff --git a/tests/regression_tests/source_mcpl_file/materials.xml b/tests/regression_tests/source_mcpl_file/materials.xml
new file mode 100644
index 0000000000..2472a74717
--- /dev/null
+++ b/tests/regression_tests/source_mcpl_file/materials.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0"?>
+<materials>
+
+  <material id="1">
+    <density value="4.5" units="g/cc" />
+    <nuclide name="U235" ao="1.0" />
+  </material>
+
+</materials>