diff --git a/PyTeX/format/constants.py b/PyTeX/format/constants.py
index 046eec0..73b1e50 100644
--- a/PyTeX/format/constants.py
+++ b/PyTeX/format/constants.py
@@ -50,9 +50,9 @@ INS_FILE = [
     r'',
     r'\endpostamble',
     r'\askforoverwritefalse',
-    r''','''
+    r'',
     r'\generate{{\file{{{outfile}}}{{\from{{{infile}}}{{{guards}}}}}}}',
-    r''','''
+    r'',
     r'\def\tmpa{{plain}}',
     r'\ifx\tmpa\fmtname\endgroup\expandafter\bye\fi',
     r'\endgroup',