2 files changed, 2 insertions, 2 deletions

diff --git a/src/microhttpd/mhd_str.c b/src/microhttpd/mhd_str.c
index 6099f93c..efe31f12 100644
--- a/src/microhttpd/mhd_str.c
+++ b/src/microhttpd/mhd_str.c
@@ -1164,7 +1164,7 @@ MHD_str_to_uvalue_n_ (const char *str,
                       void *out_val,
                       size_t val_size,
                       uint64_t max_val,
-                      int base)
+                      unsigned int base)
 {
   size_t i;
   uint64_t res;
diff --git a/src/microhttpd/mhd_str.h b/src/microhttpd/mhd_str.h
index cd0af55f..e2964406 100644
--- a/src/microhttpd/mhd_str.h
+++ b/src/microhttpd/mhd_str.h
@@ -351,7 +351,7 @@ MHD_str_to_uvalue_n_ (const char *str,
                       void *out_val,
                       size_t val_size,
                       uint64_t max_val,
-                      int base);
+                      unsigned int base);
 
 #define MHD_str_to_uint64_(s,ov) MHD_str_to_uvalue_n_ ((s),SIZE_MAX,(ov), \
                                                        sizeof(uint64_t), \