diff --git a/pkgs/by-name/li/libssc/package.nix b/pkgs/by-name/li/libssc/package.nix
index dfe6705101ba..fd6862d18941 100644
--- a/pkgs/by-name/li/libssc/package.nix
+++ b/pkgs/by-name/li/libssc/package.nix
@@ -34,11 +34,14 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [
     protobuf
+    protobufc
     pkg-config
     meson
     ninja
   ];
 
+  strictDeps = true;
+
   meta = {
     description = "Library for exposing Qualcomm Sensor Core sensors to Linux";
     homepage = "https://codeberg.org/DylanVanAssche/libssc";