diff --git a/src/Cursor.cpp b/src/Cursor.cpp
index ef9b837524..fd43dd74eb 100644
--- a/src/Cursor.cpp
+++ b/src/Cursor.cpp
@@ -571,26 +571,6 @@ void CursorData::sanitize()
 }
 
 
-bool CursorData::isInside(Inset const * p) const
-{
-	for (size_t i = 0; i != depth(); ++i)
-		if (&operator[](i).inset() == p)
-			return true;
-	return false;
-}
-
-
-void CursorData::leaveInset(Inset const & inset)
-{
-	for (size_t i = 0; i != depth(); ++i) {
-		if (&operator[](i).inset() == &inset) {
-			resize(i);
-			return;
-		}
-	}
-}
-
-
 bool CursorData::undoAction()
 {
 	if (!buffer()->undo().undoAction(*this))
diff --git a/src/Cursor.h b/src/Cursor.h
index dcce84920a..2985543a44 100644
--- a/src/Cursor.h
+++ b/src/Cursor.h
@@ -171,10 +171,6 @@ public:
 	/// Repopulate the slices insets from bottom to top. Useful
 	/// for stable iterators or Undo data.
 	void sanitize();
-	///
-	bool isInside(Inset const *) const;
-	/// make sure we are outside of given inset
-	void leaveInset(Inset const & inset);
 
 	///
 	bool undoAction();
diff --git a/src/DocIterator.cpp b/src/DocIterator.cpp
index 895ebc68c2..d370e0a1e7 100644
--- a/src/DocIterator.cpp
+++ b/src/DocIterator.cpp
@@ -656,6 +656,26 @@ void DocIterator::sanitize()
 }
 
 
+bool DocIterator::isInside(Inset const * p) const
+{
+	for (CursorSlice const & sl : slices_)
+		if (&sl.inset() == p)
+			return true;
+	return false;
+}
+
+
+void DocIterator::leaveInset(Inset const & inset)
+{
+	for (size_t i = 0; i != slices_.size(); ++i) {
+		if (&slices_[i].inset() == &inset) {
+			resize(i);
+			return;
+		}
+	}
+}
+
+
 int DocIterator::find(MathData const & cell) const
 {
 	for (size_t l = 0; l != slices_.size(); ++l) {
diff --git a/src/DocIterator.h b/src/DocIterator.h
index 4d2dfa00f7..0653de86e9 100644
--- a/src/DocIterator.h
+++ b/src/DocIterator.h
@@ -249,6 +249,10 @@ public:
 	/// Repopulate the slices insets from bottom to top. Useful
 	/// for stable iterators or Undo data.
 	void sanitize();
+	///
+	bool isInside(Inset const *) const;
+	/// make sure we are outside of given inset
+	void leaveInset(Inset const & inset);
 
 	/// find index of CursorSlice with &cell() == &cell (or -1 if not found)
 	int find(MathData const & cell) const;