plugins/textsize/textsize/__init__.py       | 1 +
 plugins/textsize/textsize/documenthelper.py | 1 +
 plugins/textsize/textsize/signals.py        | 4 +++-
 tools/generate-plugin.py                    | 2 +-
 tools/preprocessor.py                       | 1 +
 5 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/plugins/textsize/textsize/__init__.py b/plugins/textsize/textsize/__init__.py
index 0ee4041..560be80 100644
--- a/plugins/textsize/textsize/__init__.py
+++ b/plugins/textsize/textsize/__init__.py
@@ -1,3 +1,4 @@
+#!/usr/bin/python3
 # -*- coding: utf-8 -*-
 #
 #  __init__.py - Text size plugin
diff --git a/plugins/textsize/textsize/documenthelper.py b/plugins/textsize/textsize/documenthelper.py
index bd355fb..7385341 100644
--- a/plugins/textsize/textsize/documenthelper.py
+++ b/plugins/textsize/textsize/documenthelper.py
@@ -1,3 +1,4 @@
+#!/usr/bin/python3
 # -*- coding: utf-8 -*-
 #
 #  documenthelper.py - Document helper
diff --git a/plugins/textsize/textsize/signals.py b/plugins/textsize/textsize/signals.py
index 2996a12..84119c7 100644
--- a/plugins/textsize/textsize/signals.py
+++ b/plugins/textsize/textsize/signals.py
@@ -1,3 +1,5 @@
+#!/usr/bin/python3
+
 class Signals(object):
     def __init__(self):
         self._signals = {}
@@ -66,4 +68,4 @@ class Signals(object):
         if len(self._signals[obj]) == 0:
             del self._signals[obj]
 
-        return True
\ No newline at end of file
+        return True
diff --git a/tools/generate-plugin.py b/tools/generate-plugin.py
index 0cba4c3..70cca34 100755
--- a/tools/generate-plugin.py
+++ b/tools/generate-plugin.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3
+#!/usr/bin/python3
 # -*- coding: utf-8 -*-
 
 # generate-plugin.py - xed plugin skeletton generator
diff --git a/tools/preprocessor.py b/tools/preprocessor.py
index 03a1793..3c6a5e5 100644
--- a/tools/preprocessor.py
+++ b/tools/preprocessor.py
@@ -1,3 +1,4 @@
+#!/usr/bin/python3
 # -*- coding: utf-8 -*-
 
 # preprocessor.py - simple preprocessor for plugin template files