diff --git a/pkgs/development/libraries/libebml/default.nix b/pkgs/development/libraries/libebml/default.nix
index 84025e24f659..00fc506add7f 100644
--- a/pkgs/development/libraries/libebml/default.nix
+++ b/pkgs/development/libraries/libebml/default.nix
@@ -18,6 +18,12 @@ stdenv.mkDerivation rec {
       sha256 = "1yd6rsds03kwx5jki4hihd2bpfh26g5l1pi82qzaqzarixdxwzvl";
       excludes = [ "ChangeLog" ];
     })
+    # in master post 1.4.2, see https://github.com/Matroska-Org/libebml/issues/97
+    (fetchpatch {
+      name = "fix-pkg-config.patch";
+      url = "https://github.com/Matroska-Org/libebml/commit/42fbae35d291b737f2bb4ad5d643fd0d48537a88.patch";
+      sha256 = "020qp4a3l60mcm4n310ynxbbv5qlpmybb9xy10pjvx4brp83pmy3";
+    })
   ];
 
   nativeBuildInputs = [ cmake pkg-config ];