1 files changed, 2 insertions, 1 deletions

diff --git a/include/libbb.h b/include/libbb.h
index 750e0bb4f..a6d9a510b 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -267,7 +267,8 @@ enum {
         MEGABYTE = (KILOBYTE*1024),
         GIGABYTE = (MEGABYTE*1024)
 };
-const char *make_human_readable_str(unsigned long size, unsigned long block_size, unsigned long display_unit);
+const char *make_human_readable_str(unsigned long long size, 
+                unsigned long block_size, unsigned long display_unit);
 
 int bb_ask_confirmation(void);
 int klogctl(int type, char * b, int len);