1 files changed, 1 insertions, 1 deletions

diff --git a/subgetopt.c b/subgetopt.c
index 85ace96..a23e0d7 100644
--- a/subgetopt.c
+++ b/subgetopt.c
@@ -16,7 +16,7 @@ const char *optarg = 0;
 int optproblem = 0;
 int optdone = SUBGETOPTDONE;
 
-int sgopt(int argc,const char *const *argv,const char *opts)
+int sgopt(int argc,char *const *argv,const char *opts)
 {
   int c;
   const char *s;