diff --git a/launch.sh b/launch.sh
index e3db21aaf..7f51a6aee 100755
--- a/launch.sh
+++ b/launch.sh
@@ -1,3 +1,3 @@
 #!/bin/sh
 cd src
-./gajim.py $@
+exec python -OOt gajim.py $@
diff --git a/scripts/gajim b/scripts/gajim
index 981364c69..01acf4b00 100644
--- a/scripts/gajim
+++ b/scripts/gajim
@@ -23,4 +23,4 @@ fi
 
 cd PREFIX/share/gajim/src
 export PYTHONPATH="$PYTHONPATH:PREFIXLIB/gajim"
-exec python -OOt ./gajim.py $@
+exec python -OOt gajim.py $@