diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
index 38e2759..53b615c 100644
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -1,4 +1,2 @@
 ecm_optional_add_subdirectory(kcontrol5)
-if(UNIX)
-    ecm_optional_add_subdirectory(kdesu)
-endif()
+ecm_optional_add_subdirectory(kdesu)