diff --git a/core/include/Data/SqpDateTime.h b/core/include/Data/SqpDateTime.h
index 34f9aa3..a6d1aa4 100644
--- a/core/include/Data/SqpDateTime.h
+++ b/core/include/Data/SqpDateTime.h
@@ -3,7 +3,6 @@
 
 /**
  * @brief The SqpDateTime struct holds the information of time parameters
- * @sa SqpDateTime
  */
 struct SqpDateTime {
     /// Start time
diff --git a/core/src/Variable/VariableController.cpp b/core/src/Variable/VariableController.cpp
index 4ed7282..ccd7a5c 100644
--- a/core/src/Variable/VariableController.cpp
+++ b/core/src/Variable/VariableController.cpp
@@ -36,7 +36,7 @@ struct VariableController::VariableControllerPrivate {
     /// Variable model. The VariableController has the ownership
     VariableModel *m_VariableModel;
 
-    TimeController *m_TimeController;
+    TimeController *m_TimeController{nullptr};
 };
 
 VariableController::VariableController(QObject *parent)