diff --git a/knot.spec b/knot.spec
index ac0487b..ba818b0 100644
--- a/knot.spec
+++ b/knot.spec
@@ -51,6 +51,7 @@ BuildRequires:  libedit-devel
 BuildRequires:  libnghttp2-devel
 %if 0%{?suse_version} >= 1600
 BuildRequires:  libngtcp2-devel
+BuildRequires:  libngtcp2_crypto_gnutls8
 %endif
 BuildRequires:  liburcu-devel
 BuildRequires:  lmdb-devel >= 0.9.15