diff --git a/tools/regression/usr.bin/printf/regress.sh b/tools/regression/usr.bin/printf/regress.sh
index 4ce282fb60a1..9df7e3ef60ca 100644
--- a/tools/regression/usr.bin/printf/regress.sh
+++ b/tools/regression/usr.bin/printf/regress.sh
@@ -2,7 +2,7 @@
 
 REGRESSION_START($1)
 
-echo '1..11'
+echo '1..12'
 
 REGRESSION_TEST(`b', `printf "abc%b%b" "def\n" "\cghi"')
 REGRESSION_TEST(`d', `printf "%d,%5d,%.5d,%0*d,%.*d\n" 123 123 123 5 123 5 123')
@@ -15,5 +15,6 @@ REGRESSION_TEST(`m3', `printf "%%%s\n" abc def ghi jkl')
 REGRESSION_TEST(`m4', `printf "%d,%f,%c,%s\n"')
 REGRESSION_TEST(`m5', `printf -- "-d\n"')
 REGRESSION_TEST(`s', `printf "%.3s,%-5s\n" abcd abc')
+REGRESSION_TEST('zero', `printf "%u%u\n" 15')
 
 REGRESSION_END()
diff --git a/tools/regression/usr.bin/printf/regress.zero.out b/tools/regression/usr.bin/printf/regress.zero.out
new file mode 100644
index 000000000000..fa8f08cb6ff8
--- /dev/null
+++ b/tools/regression/usr.bin/printf/regress.zero.out
@@ -0,0 +1 @@
+150
diff --git a/usr.bin/printf/printf.c b/usr.bin/printf/printf.c
index 4b0934290bcc..2368f184a5cc 100644
--- a/usr.bin/printf/printf.c
+++ b/usr.bin/printf/printf.c
@@ -473,7 +473,7 @@ getnum(intmax_t *ip, uintmax_t *uip, int signedconv)
 	int rval;
 
 	if (!*gargv) {
-		*ip = 0;
+		*ip = *uip = 0;
 		return (0);
 	}
 	if (**gargv == '"' || **gargv == '\'') {