1 files changed, 4 insertions, 0 deletions
diff --git a/src/nxt_string.c b/src/nxt_string.c
index 8ac873b1..8225cd9b 100644
--- a/src/nxt_string.c
+++ b/src/nxt_string.c
@@ -416,6 +416,10 @@ nxt_strvers_match(u_char *version, u_char *prefix, size_t length)
 {
     u_char  next, last;
 
+    if (length == 0) {
+        return 1;
+    }
+
     if (nxt_strncmp(version, prefix, length) == 0) {
 
         next = version[length];