diff --git a/CMakeLists.txt b/CMakeLists.txt
index e7d09190..568a5da1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -490,7 +490,7 @@ if (DBUS_BUILD_TESTS)
     # This happens to be the same as DBUS_TEST_EXEC, but its meaning is
     # different, and it has no direct Autotools equivalent (Autotools
     # tests automatically get their own ${builddir} as working directory).
-    set(DBUS_TEST_WORKING_DIR ${Z_DRIVE_IF_WINE}${CMAKE_RUNTIME_OUTPUT_DIRECTORY}${IDE_BIN})
+    set(DBUS_TEST_WORKING_DIR ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}${IDE_BIN})
     set(DBUS_TEST_DATA ${Z_DRIVE_IF_WINE}${CMAKE_BINARY_DIR}/test/data)
     set(DBUS_TEST_DAEMON ${Z_DRIVE_IF_WINE}${CMAKE_RUNTIME_OUTPUT_DIRECTORY}${IDE_BIN}/dbus-daemon${EXEEXT})
     set(DBUS_TEST_DBUS_LAUNCH ${Z_DRIVE_IF_WINE}${CMAKE_RUNTIME_OUTPUT_DIRECTORY}${IDE_BIN}/dbus-launch${EXEEXT})