diff --git a/shell.nix b/shell.nix
index 6ceb13483..d2800469f 100644
--- a/shell.nix
+++ b/shell.nix
@@ -271,6 +271,10 @@ in pkgs.mkShell {
 
     export TZDIR=${pkgs.tzdata}/share/zoneinfo
     export CHROME_BIN=${pkgs.chromium}/bin/chromium
+
+    echo "shellHook has been executed"
+    echp "TZDIR: ${TZDIR}"
+    echo "CHROME_BIN: ${CHROME_BIN}"
   '';
   nativeBuildInputs = [develop inDevelop killallUni2work diffRunning]
   ++ (with pkgs;