diff --git a/src/problem.h b/src/problem.h
index 900c719f9a8e63e926336635a2891ea3d2ed1ce5..13e9af4d22855026f0cffac66dc5f58c033b1505 100644
--- a/src/problem.h
+++ b/src/problem.h
@@ -156,8 +156,10 @@ class Problem : public std::enable_shared_from_this<Problem>
          *   - Add it to Trajectory
          *   - If it is key-frame, update state-block lists in Problem
          */
-        FrameBasePtr emplaceFrame(const std::string& _frame_structure, FrameType _frame_key_type, const Eigen::VectorXs& _frame_state,
-                               const TimeStamp& _time_stamp);
+        FrameBasePtr emplaceFrame(const std::string& _frame_structure,
+                                  FrameType _frame_key_type,
+                                  const Eigen::VectorXs& _frame_state,
+                                  const TimeStamp& _time_stamp);
 
         /** \brief Emplace frame from string frame_structure without state
          * \param _frame_structure String indicating the frame structure.
@@ -169,11 +171,13 @@ class Problem : public std::enable_shared_from_this<Problem>
          *   - Add it to Trajectory
          *   - If it is key-frame, update state-block lists in Problem
          */
-        FrameBasePtr emplaceFrame(const std::string& _frame_structure, FrameType _frame_key_type, const TimeStamp& _time_stamp);
+        FrameBasePtr emplaceFrame(const std::string& _frame_structure,
+                                  FrameType _frame_key_type,
+                                  const TimeStamp& _time_stamp);
 
         /** \brief Emplace frame from string frame_structure without structure
-         * \param _frame_structure String indicating the frame structure.
          * \param _frame_key_type Either KEY_FRAME or NON_KEY_FRAME
+         * \param _frame_state State vector; must match the size and format of the chosen frame structure
          * \param _time_stamp Time stamp of the frame
          *
          * This acts as a Frame factory, but also takes care to update related lists in WolfProblem:
@@ -181,10 +185,11 @@ class Problem : public std::enable_shared_from_this<Problem>
          *   - Add it to Trajectory
          *   - If it is key-frame, update state-block lists in Problem
          */
-        FrameBasePtr emplaceFrame(FrameType _frame_key_type, const Eigen::VectorXs& _frame_state, const TimeStamp& _time_stamp);
+        FrameBasePtr emplaceFrame(FrameType _frame_key_type,
+                                  const Eigen::VectorXs& _frame_state,
+                                  const TimeStamp& _time_stamp);
 
         /** \brief Emplace frame from string frame_structure without structure nor state
-         * \param _frame_structure String indicating the frame structure.
          * \param _frame_key_type Either KEY_FRAME or NON_KEY_FRAME
          * \param _time_stamp Time stamp of the frame
          *
@@ -193,7 +198,8 @@ class Problem : public std::enable_shared_from_this<Problem>
          *   - Add it to Trajectory
          *   - If it is key-frame, update state-block lists in Problem
          */
-        FrameBasePtr emplaceFrame(FrameType _frame_key_type, const TimeStamp& _time_stamp);
+        FrameBasePtr emplaceFrame(FrameType _frame_key_type,
+                                  const TimeStamp& _time_stamp);
 
         // State getters
         Eigen::VectorXs getCurrentState();