diff --git a/apps/tutorials/pe/02_ConfinedGasExtended.dox b/apps/tutorials/pe/02_ConfinedGasExtended.dox
index cbc7a572aa685feb0e50d43201d554d50220292e..89cd4a837becfdef61bc1c66212e73cafafb65f7 100644
--- a/apps/tutorials/pe/02_ConfinedGasExtended.dox
+++ b/apps/tutorials/pe/02_ConfinedGasExtended.dox
@@ -111,7 +111,7 @@ Raytracer raytracer(forest, storageID, globalBodyStorage, ccdID,
                     lighting,
                     Color(real_t(0.1), real_t(0.1), real_t(0.1)),
                     radius,
-                    customShadingFunction;
+                    customShadingFunction);
 \endcode
 After the configuration is done, images can be generated each timestep by calling Raytracer::generateImage<BodyTuple>()
 which will be output to the specified directory.