1diff --git a/pygraphviz/agraph.py b/pygraphviz/agraph.py 2index d539ba0..f5bac3f 100644 3--- a/pygraphviz/agraph.py 4+++ b/pygraphviz/agraph.py 5@@ -1792,7 +1792,7 @@ class AGraph: 6 if platform.system() == "Windows": 7 name += ".exe" 8 9- paths = os.environ["PATH"] 10+ paths = '@path@' 11 for path in paths.split(os.pathsep): 12 match = glob.glob(os.path.join(path, name)) 13 if match: