diff --git a/latex/maketd.py b/latex/maketd.py
index 527d223..09e5e3c 100755
--- a/latex/maketd.py
+++ b/latex/maketd.py
@@ -17,7 +17,13 @@ def compiler(nf, suff) :
 def clean(nf, suff) :
    subprocess.call(["latexmk", "-cd", "-c",  "-jobname="+os.path.splitext(os.path.basename(nf))[0]+suff, nf])
 
-with open(sys.argv[1]) as f :
+if sys.argv[1].endswith(".tex") :
+   nf = sys.argv[1]
+else :
+   nf = sys.argv[1]+".tex"
+
+
+with open(nf) as f :
    for l in f.readlines() :
       if l.strip() == "" or l.strip().startswith("%") :
          continue
@@ -29,6 +35,8 @@ with open(sys.argv[1]) as f :
          modes = [("-ENONCE", ""), ("-PROF", ""), ("-CORRIGE", "")]
       break
 
-for suff in modes :
-   compiler(sys.argv[1], suff)
+
+
+for suff in modes :
+   compiler(nf, suff)