diff --git a/aegisub/subs_edit_ctrl.cpp b/aegisub/subs_edit_ctrl.cpp
index e4c49ef81..f6c82225a 100644
--- a/aegisub/subs_edit_ctrl.cpp
+++ b/aegisub/subs_edit_ctrl.cpp
@@ -946,7 +946,9 @@ void SubsTextEditCtrl::OnSplitLinePreserve (wxCommandEvent &event) {
 	GetSelection(&from, &to);
 	from = GetReverseUnicodePosition(from);
 	to = GetReverseUnicodePosition(to);
-	control->grid->SplitLine(control->linen,from,0);
+	// Call SplitLine() with the text currently in the editbox.
+	// This makes sure we split what the user sees, not the committed line.
+	control->grid->SplitLine(control->linen,from,0,GetText());
 }
 
 
@@ -957,7 +959,9 @@ void SubsTextEditCtrl::OnSplitLineEstimate (wxCommandEvent &event) {
 	GetSelection(&from, &to);
 	from = GetReverseUnicodePosition(from);
 	to = GetReverseUnicodePosition(to);
-	control->grid->SplitLine(control->linen,from,1);
+	// Call SplitLine() with the text currently in the editbox.
+	// This makes sure we split what the user sees, not the committed line.
+	control->grid->SplitLine(control->linen,from,1,GetText());
 }
 
 
diff --git a/aegisub/subs_grid.cpp b/aegisub/subs_grid.cpp
index 2e8d7f62d..e20ea6e1b 100644
--- a/aegisub/subs_grid.cpp
+++ b/aegisub/subs_grid.cpp
@@ -1251,11 +1251,20 @@ void SubtitlesGrid::ShiftLineByFrames(int n,int len,int type) {
 
 //////////////
 // Split line
-void SubtitlesGrid::SplitLine(int n,int pos,int mode) {
+void SubtitlesGrid::SplitLine(int n,int pos,int mode,wxString textIn) {
 	// Split
 	AssDialogue *n1,*n2;
-	n1 = GetDialogue(n);
-	n2 = new AssDialogue(n1->GetEntryData());
+	// No textIn? Get saved text
+	if (textIn.IsEmpty()) { 
+		n1 = GetDialogue(n);
+		n2 = new AssDialogue(n1->GetEntryData());
+	}
+	// Otherwise use textIn
+	else { 
+		n1 = GetDialogue(n);
+		n1->Text = textIn;
+		n2 = new AssDialogue(n1->GetEntryData());
+	}
 	InsertLine(n2,n,true,false);
 
 	// Modify text
diff --git a/aegisub/subs_grid.h b/aegisub/subs_grid.h
index 24ff1ce2a..be25942a1 100644
--- a/aegisub/subs_grid.h
+++ b/aegisub/subs_grid.h
@@ -115,7 +115,7 @@ public:
 	void JoinLines(int first,int last,bool concat=true);
 	void JoinAsKaraoke(int first,int last);
 	void AdjoinLines(int first,int last,bool setStart);
-	void SplitLine(int lineNumber,int splitPosition,int mode);
+	void SplitLine(int lineNumber,int splitPosition,int mode,wxString splitText = _T(""));
 	void SplitLineByKaraoke(int lineNumber);
 	void DuplicateLines(int first,int last,bool nextFrame=false);