diff --git a/python/PyQt6/core/core.sip.in b/python/PyQt6/core/core.sip.in
index a9a7b7a9532..165aaa4ecbb 100644
--- a/python/PyQt6/core/core.sip.in
+++ b/python/PyQt6/core/core.sip.in
@@ -91,15 +91,6 @@ done:
 
 %End
 
-%Import QtXml/QtXmlmod.sip
-%Import QtNetwork/QtNetworkmod.sip
-%Import QtSql/QtSqlmod.sip
-
-%Import QtPrintSupport/QtPrintSupportmod.sip
-%Import QtWidgets/QtWidgetsmod.sip
-%Import QtPositioning/QtPositioningmod.sip
-%Import QtSerialPort/QtSerialPortmod.sip
-
 %Feature HAVE_GUI
 %Feature HAVE_QTSERIALPORT
 %Feature HAVE_QTPRINTER
@@ -108,6 +99,18 @@ done:
 %Feature HAVE_WEBENGINE_SIP
 %Feature PYQT6
 
+%Import QtXml/QtXmlmod.sip
+%Import QtNetwork/QtNetworkmod.sip
+%Import QtSql/QtSqlmod.sip
+
+%Import QtPrintSupport/QtPrintSupportmod.sip
+%Import QtWidgets/QtWidgetsmod.sip
+%Import QtPositioning/QtPositioningmod.sip
+
+%If (HAVE_QTSERIALPORT)
+%Import QtSerialPort/QtSerialPortmod.sip
+%End
+
 %Include conversions.sip
 %Include qgsexception.sip
 %Include typedefs.sip
diff --git a/python/core/core.sip.in b/python/core/core.sip.in
index 10c6ff3f4c5..8378dd45520 100644
--- a/python/core/core.sip.in
+++ b/python/core/core.sip.in
@@ -91,6 +91,13 @@ done:
 
 %End
 
+%Feature HAVE_GUI
+%Feature HAVE_QTSERIALPORT
+%Feature HAVE_QTPRINTER
+%Feature ANDROID
+%Feature VECTOR_MAPPED_TYPE
+%Feature HAVE_WEBENGINE_SIP
+
 %Import QtXml/QtXmlmod.sip
 %Import QtNetwork/QtNetworkmod.sip
 %Import QtSql/QtSqlmod.sip
@@ -98,14 +105,10 @@ done:
 %Import QtPrintSupport/QtPrintSupportmod.sip
 %Import QtWidgets/QtWidgetsmod.sip
 %Import QtPositioning/QtPositioningmod.sip
-%Import QtSerialPort/QtSerialPortmod.sip
 
-%Feature HAVE_GUI
-%Feature HAVE_QTSERIALPORT
-%Feature HAVE_QTPRINTER
-%Feature ANDROID
-%Feature VECTOR_MAPPED_TYPE
-%Feature HAVE_WEBENGINE_SIP
+%If (HAVE_QTSERIALPORT)
+%Import QtSerialPort/QtSerialPortmod.sip
+%End
 
 %Include conversions.sip
 %Include qgsexception.sip