1 files changed, 2 insertions, 3 deletions

diff --git a/tools/nissy_extra.h b/tools/nissy_extra.h
index 505f53a..63d171b 100644
--- a/tools/nissy_extra.h
+++ b/tools/nissy_extra.h
@@ -9,7 +9,6 @@ for testing purposes only.
 #include "../src/solvers/tables_types_macros.h"
 #include "../src/solvers/tables.h"
 
-size_t gendata_h48_derive(uint8_t, const void *, void *);
+size_t gendata_h48_derive(uint8_t, const unsigned char *, unsigned char *);
 int parse_h48_solver(const char *, uint8_t [static 1], uint8_t [static 1]);
-long long int nissy_datainfo(uint64_t, const char *);
-long long int nissy_derivedata(const char *, const void *, void *);
+long long int nissy_datainfo(uint64_t, const unsigned char *);