diff --git i/Source/cmake/OptionsGTK.cmake w/Source/cmake/OptionsGTK.cmake
index d3577a8..9620dc0 100644
--- i/Source/cmake/OptionsGTK.cmake
+++ w/Source/cmake/OptionsGTK.cmake
@@ -94,7 +94,7 @@ WEBKIT_OPTION_DEFINE(USE_LIBSECRET "Whether to enable the persistent credential
 
 # Private options specific to the GTK+ port. Changing these options is
 # completely unsupported. They are intended for use only by WebKit developers.
-WEBKIT_OPTION_DEFINE(USE_GSTREAMER_GL "Whether to enable support for GStreamer GL" PRIVATE ON)
+WEBKIT_OPTION_DEFINE(USE_GSTREAMER_GL "Whether to enable support for GStreamer GL" PRIVATE OFF)
 WEBKIT_OPTION_DEFINE(USE_GSTREAMER_MPEGTS "Whether to enable support for MPEG-TS" PRIVATE OFF)
 WEBKIT_OPTION_DEFINE(USE_REDIRECTED_XCOMPOSITE_WINDOW "Whether to use a Redirected XComposite Window for accelerated compositing in X11." PRIVATE ON)