diff --git a/pkgs/servers/samba/4.x.nix b/pkgs/servers/samba/4.x.nix
index 6d68a2b8b44e..de5a3b225876 100644
--- a/pkgs/servers/samba/4.x.nix
+++ b/pkgs/servers/samba/4.x.nix
@@ -122,6 +122,7 @@ stdenv.mkDerivation (finalAttrs: {
     perl.pkgs.ParseYapp
     perl.pkgs.JSON
     libxslt
+    libtasn1 # Needed also natively for `asn1Parser` program
     docbook_xsl
     docbook_xml_dtd_45
     cmocka
@@ -267,6 +268,8 @@ stdenv.mkDerivation (finalAttrs: {
     tdb
   ];
 
+  strictDeps = true;
+
   preBuild = ''
     export MAKEFLAGS="-j $NIX_BUILD_CORES"
   '';