diff --git a/src/pdf/CMakeLists.txt b/src/pdf/CMakeLists.txt
index 95931a261..61806ee08 100644
--- a/src/pdf/CMakeLists.txt
+++ b/src/pdf/CMakeLists.txt
@@ -215,6 +215,10 @@ foreach(arch ${archs})
             ARGS pdfium_use_system_libtiff
             CONDITION QT_FEATURE_webengine_system_libtiff
         )
+        extend_gn_list(gnArgArg
+            ARGS use_system_libjpeg
+            CONDITION QT_FEATURE_webengine_system_libjpeg
+        )
         extend_gn_list(gnArgArg
             ARGS use_qt_libjpeg
             CONDITION QT_FEATURE_webengine_qt_libjpeg