diff --git a/autotests/server/CMakeLists.txt b/autotests/server/CMakeLists.txt
--- a/autotests/server/CMakeLists.txt
+++ b/autotests/server/CMakeLists.txt
@@ -1,7 +1,6 @@
 ########################################################
 # Test WaylandServerDisplay
 ########################################################
-add_definitions(-DAUTOTEST_CURRENT_BIN_DIR="${CMAKE_CURRENT_BINARY_DIR}")
 set( testWaylandServerDisplay_SRCS
         test_display.cpp
     )
diff --git a/autotests/server/test_display.cpp b/autotests/server/test_display.cpp
--- a/autotests/server/test_display.cpp
+++ b/autotests/server/test_display.cpp
@@ -143,7 +143,7 @@
     QVERIFY(connection->groupId() != 0);
     QVERIFY(connection->processId() != 0);
     QCOMPARE(connection->display(), &display);
-    QCOMPARE(connection->executablePath(), QStringLiteral("%1/testWaylandServerDisplay").arg(AUTOTEST_CURRENT_BIN_DIR));
+    QCOMPARE(connection->executablePath(), QCoreApplication::applicationFilePath());
     QCOMPARE((wl_client*)*connection, client);
     const ClientConnection &constRef = *connection;
     QCOMPARE((wl_client*)constRef, client);