1 files changed, 1 insertions, 1 deletions
diff --git a/src/proj.c b/src/proj.c
index 009ce9d6..e01175a5 100644
--- a/src/proj.c
+++ b/src/proj.c
@@ -369,7 +369,7 @@ int main(int argc, char **argv) {
                     /* list projections */
                     const struct PJ_LIST *lp;
                     int do_long = arg[1] == 'P', c;
-                    char *str;
+                    const char *str;
 
                     for (lp = proj_list_operations() ; lp->id ; ++lp) {
                         if( strcmp(lp->id,"latlong") == 0