diff --git a/pkgs/development/libraries/vulkan-loader/default.nix b/pkgs/development/libraries/vulkan-loader/default.nix
index 4c00bb86142..8b986798517 100644
--- a/pkgs/development/libraries/vulkan-loader/default.nix
+++ b/pkgs/development/libraries/vulkan-loader/default.nix
@@ -11,7 +11,6 @@ let
     rev = "sdk-${version}";
     sha256 = "157m746hc76xrxd3qq0f44f5dy7pjbz8cx74ykqrlbc7rmpjpk58";
   };
-  getRev = name: builtins.substring 0 40 (builtins.readFile "${src}/${name}_revision");
 in
 
 stdenv.mkDerivation rec {
@@ -37,6 +36,15 @@ stdenv.mkDerivation rec {
     "-DBUILD_WSI_WAYLAND_SUPPORT=ON" # XLIB/XCB supported by default
   ];
 
+  preConfigure = ''
+    checkRev() {
+      [ "$2" = $(cat "$1_revision") ] || (echo "ERROR: dependency $1 is revision $2 but should be revision" $(cat "$1_revision") && exit 1)
+    }
+    checkRev spirv-tools "${spirv-tools.src.rev}"
+    checkRev spirv-headers "${spirv-tools.headers.rev}"
+    checkRev glslang "${glslang.src.rev}"
+  '';
+
   installPhase = ''
     mkdir -p $out/lib
     mkdir -p $out/bin