diff --git a/sipgen/lexer.c b/sipgen/lexer.c
index 775794c..2087c65 100644
--- a/sipgen/lexer.c
+++ b/sipgen/lexer.c
@@ -3,7 +3,7 @@
 
 #define  YY_INT_ALIGNED short int
 
-/* A lexical scanner generated by flex */
+/* A lexical scanner generated by flex  */
 
 #define FLEX_SCANNER
 #define YY_FLEX_MAJOR_VERSION 2
diff --git a/sipgen/parser.c b/sipgen/parser.c
index 77b67b5..91febd7 100644
--- a/sipgen/parser.c
+++ b/sipgen/parser.c
@@ -1,5 +1,5 @@
 
-/* A Bison parser, made by GNU Bison 2.4.1.  */
+/* A Bison parser, made by GNU Bison 2.4.1.   */
 
 /* Skeleton implementation for Bison's Yacc-like parsers in C