1 files changed, 4 insertions, 2 deletions

diff --git a/shell/shell.c b/shell/shell.c
index 26b4535..104e7e0 100644
--- a/shell/shell.c
+++ b/shell/shell.c
@@ -360,7 +360,8 @@ gendata_exec(args_t *args)
 {
         int i;
         FILE *file;
-        char *buf, path[MAX_PATH_LENGTH], dataid[NISSY_SIZE_DATAID];
+        char path[MAX_PATH_LENGTH], dataid[NISSY_SIZE_DATAID];
+        unsigned char *buf;
         int64_t ret, size;
         size_t written;
 
@@ -427,7 +428,8 @@ solve_exec(args_t *args)
         int i;
         uint8_t nissflag;
         FILE *file;
-        char *buf, solutions[SOLUTIONS_BUFFER_SIZE], path[MAX_PATH_LENGTH];
+        char solutions[SOLUTIONS_BUFFER_SIZE], path[MAX_PATH_LENGTH];
+        unsigned char *buf;
         char dataid[NISSY_SIZE_DATAID];
         long long stats[NISSY_SIZE_SOLVE_STATS];
         int64_t ret, gendata_ret, size;