diff --git a/webnotes/__init__.py b/webnotes/__init__.py
index c2d38438b9..a1af5d690a 100644
--- a/webnotes/__init__.py
+++ b/webnotes/__init__.py
@@ -635,4 +635,3 @@ def validate_versions():
 	if not spec.match(framework_version):
 		raise Exception, "Framework version out of sync"
 
-validate_versions()
diff --git a/webnotes/app.py b/webnotes/app.py
index 1c1cc30d66..a6de33b0d1 100644
--- a/webnotes/app.py
+++ b/webnotes/app.py
@@ -61,6 +61,7 @@ application = StaticDataMiddleware(application, {
 
 
 def serve(port=8000, profile=False):
+	webnotes.validate_versions()
 	global application
 	from werkzeug.serving import run_simple
 	if profile:
diff --git a/webnotes/build.py b/webnotes/build.py
index e997ed4891..72837522d1 100644
--- a/webnotes/build.py
+++ b/webnotes/build.py
@@ -15,6 +15,7 @@ from cssmin import cssmin
 def bundle(no_compress, cms_make=True):
 	"""concat / minify js files"""
 	# build js files
+	webnotes.validate_versions()
 	check_public()
 	check_lang()
 	bundle = Bundle()