diff --git a/pkgs/development/tools/build-managers/bear/default.nix b/pkgs/development/tools/build-managers/bear/default.nix
index 949225aeb226..a79520e8fd56 100644
--- a/pkgs/development/tools/build-managers/bear/default.nix
+++ b/pkgs/development/tools/build-managers/bear/default.nix
@@ -2,6 +2,7 @@
 , fetchFromGitHub
 , fetchpatch
 , cmake
+, ninja
 , pkg-config
 , grpc
 , protobuf
@@ -31,6 +32,7 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [
     cmake
+    ninja
     pkg-config
 
     # Used for functional tests, which run during buildPhase.