diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1f5e6673a..0da29ed14 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -448,10 +448,11 @@ if (BUILD_GUI)
                         OpenGLWidgets
                         Quick
                         QuickWidgets
-                        TextToSpeech
+                       OPTIONAL_COMPONENTS
                         WebEngineQuick
                         WebEngineCore
-                        WebEngineWidgets)
+                        WebEngineWidgets
+                        TextToSpeech)
     else()
         find_package(Qt5
                        REQUIRED COMPONENTS
diff --git a/plugins/channelrx/CMakeLists.txt b/plugins/channelrx/CMakeLists.txt
index f3ad92696..15aa47fb7 100644
--- a/plugins/channelrx/CMakeLists.txt
+++ b/plugins/channelrx/CMakeLists.txt
@@ -1,6 +1,6 @@
 project(demod)
 
-if (ENABLE_CHANNELRX_DEMODADSB AND Qt${QT_DEFAULT_MAJOR_VERSION}Quick_FOUND AND Qt${QT_DEFAULT_MAJOR_VERSION}QuickWidgets_FOUND AND Qt${QT_DEFAULT_MAJOR_VERSION}Positioning_FOUND)
+if (ENABLE_CHANNELRX_DEMODADSB AND Qt${QT_DEFAULT_MAJOR_VERSION}Quick_FOUND AND Qt${QT_DEFAULT_MAJOR_VERSION}QuickWidgets_FOUND AND Qt${QT_DEFAULT_MAJOR_VERSION}Positioning_FOUND AND Qt${QT_DEFAULT_MAJOR_VERSION}TextToSpeech_FOUND)
     add_subdirectory(demodadsb)
     # add_subdirectory(demodvormc)
 endif()
diff --git a/sdrbase/util/simpleserializer.h b/sdrbase/util/simpleserializer.h
index fc63d9907..3abab71a0 100644
--- a/sdrbase/util/simpleserializer.h
+++ b/sdrbase/util/simpleserializer.h
@@ -4,6 +4,7 @@
 #include <QString>
 #include <QMap>
 #include <QDataStream>
+#include <QIODevice>
 #include "dsp/dsptypes.h"
 #include "export.h"