diff --git a/Toolset/palettes/script editor/behaviors/revsecommoneditorbehavior.livecodescript b/Toolset/palettes/script editor/behaviors/revsecommoneditorbehavior.livecodescript
index f9eca8a84d..954407a535 100644
--- a/Toolset/palettes/script editor/behaviors/revsecommoneditorbehavior.livecodescript	
+++ b/Toolset/palettes/script editor/behaviors/revsecommoneditorbehavior.livecodescript	
@@ -2480,8 +2480,10 @@ on backspaceKey
          put __GetPreference("editor,autoformat", true) into tAutoFormat
          
          if tAutoFormat then
+            if tTo is 0 then put 1 into tTo
             put caretPositionLeft(tLineStart, tTo, tScript) + 1 into tAt
          else
+            if tTo is 0 then put 1 into tTo
             put tTo into tAt
          end if
          put tTo - tAt + 1 into tLength
diff --git a/notes/bugfix-22639.md b/notes/bugfix-22639.md
new file mode 100644
index 0000000000..0434e0f5b2
--- /dev/null
+++ b/notes/bugfix-22639.md
@@ -0,0 +1 @@
+# Fix backspaceKey returning wrong position to SE