diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 6c56c62fd9a5..af307588ad8b 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -3526,8 +3526,12 @@ int vsscanf(const char *buf, const char *fmt, va_list args)
 		str = skip_spaces(str);
 
 		digit = *str;
-		if (is_sign && digit == '-')
+		if (is_sign && digit == '-') {
+			if (field_width == 1)
+				break;
+
 			digit = *(str + 1);
+		}
 
 		if (!digit
 		    || (base == 16 && !isxdigit(digit))