1 files changed, 1 insertions, 1 deletions

diff --git a/libbb/vdprintf.c b/libbb/vdprintf.c
index d16c51947..726d56374 100644
--- a/libbb/vdprintf.c
+++ b/libbb/vdprintf.c
@@ -15,7 +15,7 @@ int vdprintf(int d, const char *format, va_list ap)
         char buf[BUF_SIZE];
         int len;
 
-        len = vsprintf(buf, format, ap);
+        len = vsnprintf(buf, BUF_SIZE, format, ap);
         return write(d, buf, len);
 }
 #endif