diff --git a/tests/printf.in b/tests/printf.in
index ad6f10620..1e42b9827 100644
--- a/tests/printf.in
+++ b/tests/printf.in
@@ -1,6 +1,6 @@
 printf "Hello %d %i %f %F %g %G\n" 1 2 3 4 5 6
 
-printf "%x %X %o %u\n" 10 11 8 -1
+printf "%x %X %o %llu\n" 10 11 8 -1
 printf "%a %A\n" 14 15
 
 printf "%c %s\n" a hello