diff --git a/src/fenrir-package/screenDriver/linux.py b/src/fenrir-package/screenDriver/linux.py
index 1a9fd966..36b3a386 100644
--- a/src/fenrir-package/screenDriver/linux.py
+++ b/src/fenrir-package/screenDriver/linux.py
@@ -139,5 +139,5 @@ class driver():
 
                 diffList = list(diff)
                 
-                self.env['screenData']['newDelta'] = ''.join(x[2:] for x in diffList if x.startswith('+ '))             
-                self.env['screenData']['newNegativeDelta'] = ''.join(x[2:] for x in diffList if x.startswith('- '))
+                self.env['screenData']['newDelta'] = ''.join(x[2:] for x in diffList if x[0] == '+')             
+                self.env['screenData']['newNegativeDelta'] = ''.join(x[2:] for x in diffList if x[0] == '-')