diff --git a/bin/addons/__init__.py b/bin/addons/__init__.py
index 67d5c4406e2..43453d5dc5c 100644
--- a/bin/addons/__init__.py
+++ b/bin/addons/__init__.py
@@ -270,16 +270,17 @@ def get_module_resource(module, *args):
     @return: absolute path to the resource
     """
     a = get_module_path(module)
-    res = a and opj(a, *args) or False
+    if not a: raise ValueError('Could not find path for module %s'%module)
+    resource_path = opj(a, *args)
     if zipfile.is_zipfile( a +'.zip') :
         zip = zipfile.ZipFile( a + ".zip")
         files = ['/'.join(f.split('/')[1:]) for f in zip.namelist()]
-        res = '/'.join(args)
-        if res in files:
-            return opj(a, res)
-    elif os.path.exists(res):
-        return res
-    return False
+        resource_path = '/'.join(args)
+        if resource_path in files:
+            return opj(a, resource_path)
+    elif os.path.exists(resource_path):
+        return resource_path
+    raise IOError('Could not find resource %s'%resource_path)