diff --git a/src/openvpn/ssl_verify.c b/src/openvpn/ssl_verify.c
index 0cdec1e..a5b57a5 100644
--- a/src/openvpn/ssl_verify.c
+++ b/src/openvpn/ssl_verify.c
@@ -697,6 +697,13 @@
                 goto cleanup;
         }
 
+        if (BLEN(&cert_fp) == 0)
+        {
+            msg(D_TLS_ERRORS, "TLS Error: cannot compute the certificate fingerprint for "
+                              "--verify-hash/--peer-fingerprint");
+            goto cleanup;
+        }
+
         const struct verify_hash_list *current_hash = opt->verify_hash;
 
         while (current_hash)