diff --git a/InfoScreen.c b/InfoScreen.c
index 80e04837..4a1f6592 100644
--- a/InfoScreen.c
+++ b/InfoScreen.c
@@ -28,7 +28,7 @@ InfoScreen* InfoScreen_init(InfoScreen* this, const Process* process, FunctionBa
    }
    this->display = Panel_new(0, 1, COLS, height, Class(ListItem), false, bar);
    this->inc = IncSet_new(bar);
-   this->lines = Vector_new(this->display->items->type, true, DEFAULT_SIZE);
+   this->lines = Vector_new(Vector_type(this->display->items), true, DEFAULT_SIZE);
    Panel_setHeader(this->display, panelHeader);
    return this;
 }
diff --git a/ProcessList.c b/ProcessList.c
index 869bde44..cb89b720 100644
--- a/ProcessList.c
+++ b/ProcessList.c
@@ -202,7 +202,7 @@ static void ProcessList_updateTreeSetLayer(ProcessList* this, unsigned int leftB
    if (layerSize == 0)
       return;
 
-   Vector* layer = Vector_new(this->processes->type, false, layerSize);
+   Vector* layer = Vector_new(Vector_type(this->processes), false, layerSize);
 
    // Find all processes on the same layer (process with the same `deep` value
    // and included in a range from `leftBound` to `rightBound`).
diff --git a/Vector.h b/Vector.h
index 875f361d..dab94693 100644
--- a/Vector.h
+++ b/Vector.h
@@ -68,6 +68,10 @@ static inline int Vector_size(const Vector* this) {
 
 #endif /* NDEBUG */
 
+static inline const ObjectClass* Vector_type(const Vector* this) {
+    return this->type;
+}
+
 void Vector_add(Vector* this, void* data_);
 
 int Vector_indexOf(const Vector* this, const void* search_, Object_Compare compare);