diff --git a/src/native/corehost/test/CMakeLists.txt b/src/native/corehost/test/CMakeLists.txt
index 486054998f0dd2..fac7e76baf6a74 100644
--- a/src/native/corehost/test/CMakeLists.txt
+++ b/src/native/corehost/test/CMakeLists.txt
@@ -4,8 +4,10 @@ add_subdirectory(mockhostfxr/2_2)
 add_subdirectory(mockhostfxr/5_0)
 add_subdirectory(mockhostpolicy)
 add_subdirectory(nativehost)
-if (CLR_CMAKE_TARGET_WIN32)
-    add_subdirectory(comsxs)
-    add_subdirectory(ijw)
-    add_subdirectory(typelibs)
+if (NOT RUNTIME_FLAVOR STREQUAL Mono)
+    if (CLR_CMAKE_TARGET_WIN32)
+        add_subdirectory(comsxs)
+        add_subdirectory(ijw)
+        add_subdirectory(typelibs)
+    endif()
 endif()