diff --git a/pydot.py b/pydot.py
index 3c7da4d..582c5bc 100644
--- a/pydot.py
+++ b/pydot.py
@@ -124,7 +124,7 @@ def call_graphviz(program, arguments, working_dir, **kwargs):
         'LD_LIBRARY_PATH': os.environ.get('LD_LIBRARY_PATH', ''),
     }
 
-    program_with_args = [program, ] + arguments
+    program_with_args = ['@graphviz@/bin/' + program, ] + arguments
 
     process = subprocess.Popen(
         program_with_args,