diff --git a/CMakeLists.txt b/CMakeLists.txt
index c692cd4..b3547db 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -31,6 +31,7 @@ set(dependencies
     freertos
     esp_system
 #    esp_http_client
+    esp_hw_support
     esp_websocket_client
     tcp_transport
 
diff --git a/src/esprandom.h b/src/esprandom.h
index de2a806..7837070 100644
--- a/src/esprandom.h
+++ b/src/esprandom.h
@@ -4,7 +4,7 @@
 #include <limits>
 
 // esp-idf includes
-#include <esp_system.h>
+#include <esp_random.h>
 
 namespace espcpputils {