1 files changed, 2 insertions, 2 deletions
diff --git a/num.c b/num.c
index d826f8d..3140619 100644
--- a/num.c
+++ b/num.c
@@ -11,11 +11,11 @@ static char *binary(unsigned long long i, int w)
     unsigned long long b;
     int c;
 
-    b = 1<<(w-1);
+    b = 1ull<<(w-1);
 
     p = buff;
 
-    for(c = w; c--; b = b>>1)
+    for(c = w; c--; b = b>>1ull)
     {
 	if (((c+1)%4) == 0 && !first)
 	{