diff --git a/sdk/plugins/pp5.cpp b/sdk/plugins/pp5.cpp
index a6078d8..3bd577f 100644
--- a/sdk/plugins/pp5.cpp
+++ b/sdk/plugins/pp5.cpp
@@ -32,6 +32,14 @@
 
 using namespace br;
 
+
+/*!
+ * \ingroup initializers
+ * \brief Initialize PP5
+ * \author Josh Klontz \cite jklontz
+ * \author E. Taborsky \cite mmtaborsky
+ */
+
 class PP5Initializer : public Initializer
 {
     Q_OBJECT
@@ -50,6 +58,12 @@ class PP5Initializer : public Initializer
 
 BR_REGISTER(Initializer, PP5Initializer)
 
+/*!
+ * \brief PP5 context
+ * \author Josh Klontz \cite jklontz
+ * \author E. Taborsky \cite mmtaborsky
+ */
+
 struct PP5Context
 {
     ppr_context_type context;
@@ -194,6 +208,14 @@ struct PP5Context
     }
 };
 
+
+/*!
+ * \ingroup transforms
+ * \brief Enroll faces in PP5
+ * \author Josh Klontz \cite jklontz
+ * \author E. Taborsky \cite mmtaborsky
+ */
+
 class PP5Enroll : public UntrainableTransform
 {
     Q_OBJECT
@@ -249,6 +271,13 @@ BR_REGISTER(Transform, PP5Enroll)
 
 
 
+/*!
+ * \ingroup distances
+ * \brief Compare templates with PP5
+ * \author Josh Klontz \cite jklontz
+ * \author E. Taborsky \cite mmtaborsky
+ */
+
 class PP5Compare : public Distance
                  , public PP5Context
 {