diff --git a/unit_tests/falco/test_atomic_signal_handler.cpp b/unit_tests/falco/test_atomic_signal_handler.cpp
index 2bc7afe4..d1e7aecb 100644
--- a/unit_tests/falco/test_atomic_signal_handler.cpp
+++ b/unit_tests/falco/test_atomic_signal_handler.cpp
@@ -24,6 +24,7 @@ limitations under the License.
 #include <future>
 #include <memory>
 #include <vector>
+#include <thread>
 
 TEST(AtomicSignalHandler, lock_free_implementation) {
 	ASSERT_TRUE(falco::atomic_signal_handler().is_lock_free());
diff --git a/userspace/falco/falco_outputs.h b/userspace/falco/falco_outputs.h
index 860ffbdb..e6561b5f 100644
--- a/userspace/falco/falco_outputs.h
+++ b/userspace/falco/falco_outputs.h
@@ -19,6 +19,7 @@ limitations under the License.
 
 #include <memory>
 #include <map>
+#include <thread>
 
 #include "falco_common.h"
 #include "falco_engine.h"