diff --git a/source_modules/rfspace_source/src/rfspace_client.h b/source_modules/rfspace_source/src/rfspace_client.h
index 29715a2a..65b9d582 100644
--- a/source_modules/rfspace_source/src/rfspace_client.h
+++ b/source_modules/rfspace_source/src/rfspace_client.h
@@ -5,6 +5,7 @@
 #include <thread>
 #include <vector>
 #include <mutex>
+#include <chrono>
 
 #define RFSPACE_MAX_SIZE                8192
 #define RFSPACE_HEARTBEAT_INTERVAL_MS   1000