diff --git a/src/__tests__/expected/selectAllBug.txt b/src/__tests__/expected/selectAllBug.txt
new file mode 100644
index 00000000..03596e68
--- /dev/null
+++ b/src/__tests__/expected/selectAllBug.txt
@@ -0,0 +1,30 @@
+=== diff --git |===>a/src/choose.py b/src/choose.py
+/-\ index d184f91.|===>.5d7f2f9 100755
+\-/ --- a/src/choose.py
+ .  +++ b/src/choose.py
+ .  @@ -11,6 +11,7 @@ import curses
+ .   import pickle
+ .   import sys
+ .   import os
+ .  +import argparse
+ .   
+ .   import output
+ .   import screenControl
+ .  @@ -29,18 +30,16 @@ this error will go away)
+ .   '''
+ .   
+ .   
+ .  -def doProgram(stdscr, cursesAPI=None, lineObjs=None, flags=None):
+ .  +def doProgram(stdscr, flags, cursesAPI=None, lineObjs=None):
+ .       # curses and lineObjs get dependency injected for
+ .       # our tests, so init these if they are not provided
+ .       if not cursesAPI:
+ .           cursesAPI = CursesAPI()
+ .       if not lineObjs:
+ .           lineObjs = getLineObjs()
+ .  -    if not flags:
+ .  -        flags = ScreenFlags.initFromArgs()
+ .  
+ .  
+ .  ___________________________________________________________________________
+=== [f|A] selection, [down|j|up|k|space|b] navigation, [enter] open, [x] quick 
\ No newline at end of file
diff --git a/src/__tests__/testScreen.py b/src/__tests__/testScreen.py
index c28e744a..b08bf94e 100755
--- a/src/__tests__/testScreen.py
+++ b/src/__tests__/testScreen.py
@@ -132,6 +132,10 @@
     'input': 'gitAbbreviatedFiles.txt',
     'withAttributes': True,
     'inputs': ['f', 'j'],
+}, {
+    'name': 'selectAllBug',
+    'input': 'gitLongDiff.txt',
+    'inputs': ['A'],
 }]
 
 
diff --git a/src/screenControl.py b/src/screenControl.py
index a3c23d68..6e896aa6 100755
--- a/src/screenControl.py
+++ b/src/screenControl.py
@@ -521,7 +521,7 @@ def processDirty(self):
         didClearLine = False
         for index in self.dirtyIndexes:
             y = miny + index + self.getScrollOffset()
-            if y >= miny or y < maxy:
+            if y >= miny and y < maxy:
                 didClearLine = True
                 self.clearLine(y)
                 self.lineObjs[index].output(self.colorPrinter)