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-rw-r--r--lib/libc/src/stdio/vsnprintf.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/libc/src/stdio/vsnprintf.c b/lib/libc/src/stdio/vsnprintf.c
index 24b2df6..0e3d268 100644
--- a/lib/libc/src/stdio/vsnprintf.c
+++ b/lib/libc/src/stdio/vsnprintf.c
@@ -84,6 +84,9 @@ vsnprintf(char *s, size_t size, const char *fmt, va_list ap)
c = *fmt++;
switch (c) {
+ case '%':
+ printc(s, size, &off, c);
+ break;
case 'c':
c1 = (char )__va_arg(ap, int);
printc(s, size, &off, c1);