--- a/pyzbar/zbar_library.py	2018-05-13 14:26:44.000000000 +0200
+++ b/pyzbar/zbar_library.py	2018-11-08 11:08:00.245082497 +0100
@@ -2,6 +2,7 @@
 """
 import platform
 import sys
+import os
 
 from ctypes import cdll
 from ctypes.util import find_library
@@ -60,7 +61,7 @@
             dependencies, libzbar = load_objects(Path(__file__).parent)
     else:
         # Assume a shared library on the path
-        path = find_library('zbar')
+        path = os.getenv('ZBAR_PATH') or find_library('zbar')
         if not path:
             raise ImportError('Unable to find zbar shared library')
         libzbar = cdll.LoadLibrary(path)