diff --git a/tools/gst-launch.1.in b/tools/gst-launch.1.in
index b53a694b42..66bcfa8870 100644
--- a/tools/gst-launch.1.in
+++ b/tools/gst-launch.1.in
@@ -442,11 +442,6 @@ Specifies a list of plugins that are always loaded by default.  If not set,
 this defaults to the system-installed path, and the plugins installed in the
 user's home directory
 .TP
-\fBOIL_CPU_FLAGS\fR
-Useful liboil environment variable. Set OIL_CPU_FLAGS=0 when valgrind or
-other debugging tools trip over liboil's CPU detection (quite a few important
-GStreamer plugins like videotestsrc, audioconvert or audioresample use liboil).
-.TP
 \fBG_DEBUG\fR
 Useful GLib environment variable. Set G_DEBUG=fatal_warnings to make
 GStreamer programs abort when a critical warning such as an assertion failure