diff --git a/dotdrop/utils.py b/dotdrop/utils.py
index 97e3b44..4773dc4 100644
--- a/dotdrop/utils.py
+++ b/dotdrop/utils.py
@@ -282,7 +282,8 @@ def dependencies_met():
     except ImportError:
         raise Exception(err.format('python-magic'))
     if not hasattr(magic, 'from_file'):
-        raise Exception(err.format('python-magic'))
+        e = 'wrong magic module found'
+        raise Exception(e)
     try:
         from docopt import docopt
         assert(docopt)