diff --git a/README.linux b/README.linux
index 941677fc6..2e5320fad 100644
--- a/README.linux
+++ b/README.linux
@@ -26,5 +26,9 @@ cd obj
 ln -s ../makefile .
 make -j4 -k
 
-Run:
+Run (bash):
 MESA_GL_VERSION_OVERRIDE=4.5 MESA_GLSL_VERSION_OVERRIDE=450 lib/3dworld
+or
+export MESA_GL_VERSION_OVERRIDE=4.5
+export MESA_GLSL_VERSION_OVERRIDE=450
+lib/3dworld