diff --git a/generate.py b/generate.py
index 1ea70bc..a293a18 100755
--- a/generate.py
+++ b/generate.py
@@ -73,7 +73,7 @@ def main():
 
     parser = argparse.ArgumentParser(description='Generate experiment data.')
     parser.add_argument('description', type=str, nargs='+', help='file containing the taskset description.')
-    parser.add_argument('--header', dest='header', type=str, nargs='?', default='./template/config.h', help='path to optional custom header file.')
+    parser.add_argument('--header', dest='header', type=str, nargs='?', default='./template/defines.h', help='path to optional custom header file.')
     parser.add_argument('--makefile', dest='makefile', type=str, nargs='?', default='./template/Makefile', help='path to optional custom makefile.')
     parser.add_argument('--cpp', dest='cpp', type=str, nargs='*', default='./template/experiment.cpp', help='path to optional custom c++ implementation.')