diff --git a/unittest/libmariadb/CMakeLists.txt b/unittest/libmariadb/CMakeLists.txt
index 876e5cfc..d5b93716 100644
--- a/unittest/libmariadb/CMakeLists.txt
+++ b/unittest/libmariadb/CMakeLists.txt
@@ -31,7 +31,9 @@ IF(WITH_DYNCOL)
   SET(API_TESTS ${API_TESTS} "dyncol")
 ENDIF()
 
-SET(API_TESTS ${API_TESTS} "async")
+IF(NOT WIN32)
+  SET(API_TESTS ${API_TESTS} "async")
+ENDIF()
 
 #exclude following tests from ctests, since we need to run them manually with different credentials
 SET(MANUAL_TESTS "t_conc173" "rpl_api")