diff --git a/CMakeLists.txt b/CMakeLists.txt
index fcc5477a0..fbb76d4f6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2500,6 +2500,7 @@ if(WOLFSSL_EXAMPLES)
     # Build unit tests
     add_executable(unit_test
         tests/api.c
+        tests/api/test_dtls.c
         tests/api/test_md5.c
         tests/api/test_sha.c
         tests/api/test_sha256.c