diff --git a/setup b/setup
index 275236cd3..890a03c36 100755
--- a/setup
+++ b/setup
@@ -30,6 +30,11 @@ case "$(uname -s)" in
   MINGW*|MSYS*|CYGWIN*|Windows_NT) IS_WINDOWS=1 ;;
 esac
 
+# Windows: binaries are compiled with .exe suffix
+if [ "$IS_WINDOWS" -eq 1 ]; then
+  BROWSE_BIN="$SOURCE_GSTACK_DIR/browse/dist/browse.exe"
+fi
+
 # ─── Symlink-or-copy helper ───────────────────────────────────
 # On macOS/Linux: create a symlink (existing behavior).
 # On Windows without Developer Mode (MSYS2/Git Bash): plain ln -snf silently