diff --git a/utils.cmake b/utils.cmake
index a7a1a25..c3c6473 100644
--- a/utils.cmake
+++ b/utils.cmake
@@ -553,7 +553,15 @@ function(deploy_qt_runtime)
     elseif(UNIX)
         # TODO
     endif()
-    file(WRITE "$<TARGET_FILE_DIR:${DEPLOY_ARGS_TARGET}>/qt.conf" "[Paths]\nPrefix = ..\n")
+    set(__location)
+    get_target_property(__location ${DEPLOY_ARGS_TARGET} LOCATION)
+    if(__location)
+        set(__dir)
+        cmake_path(GET __location PARENT_PATH __dir)
+        if(__dir)
+            file(WRITE "${__dir}/qt.conf" "[Paths]\nPrefix = ..\n")
+        endif()
+    endif()
     if(NOT DEPLOY_ARGS_NO_INSTALL)
         include(GNUInstallDirs)
         install(TARGETS ${DEPLOY_ARGS_TARGET}