diff --git a/gitinspector/gitinspector.py b/gitinspector/gitinspector.py
index 199fa92..2263b31 100755
--- a/gitinspector/gitinspector.py
+++ b/gitinspector/gitinspector.py
@@ -59,6 +59,8 @@ def __init__(self):
 		self.useweeks = False
 
 	def output(self):
+		localization.check_compatibility(version.__version__)
+
 		if not self.localize_output:
 			localization.disable()
 
diff --git a/gitinspector/localization.py b/gitinspector/localization.py
index 7bec0a3..6dc8969 100644
--- a/gitinspector/localization.py
+++ b/gitinspector/localization.py
@@ -28,6 +28,7 @@
 import gettext
 import locale
 import os
+import re
 import sys
 import time
 
@@ -74,6 +75,16 @@ def init():
 		__installed__ = True
 		__translation__.install(True)
 
+def check_compatibility(version):
+	if isinstance(__translation__, gettext.GNUTranslations):
+		header_pattern = re.compile ("^([^:\n]+): *(.*?) *$", re.MULTILINE)
+		header_entries = dict(header_pattern.findall(_("")))
+
+		if (header_entries["Project-Id-Version"] != "gitinspector {0}".format(version)):
+			print("WARNING: The translation for your system locale is not up to date with the current gitinspector "
+			      "version. The current maintainer of this locale is {0}.".format(header_entries["Last-Translator"]),
+			      file=sys.stderr)
+
 def get_date():
 	if __enabled__ and isinstance(__translation__, gettext.GNUTranslations):
 		date = time.strftime("%x")