diff --git a/GL/glx/glxscreens.c b/GL/glx/glxscreens.c
index 41ee029..3bc9134 100644
--- a/GL/glx/glxscreens.c
+++ b/GL/glx/glxscreens.c
@@ -110,7 +110,7 @@ static const char GLServerExtensions[] =
  			"GL_EXT_texture_env_add "
  			"GL_EXT_texture_env_combine "
  			"GL_EXT_texture_env_dot3 "
- 			"GL_EXT_texture_filter_ansiotropic "
+ 			"GL_EXT_texture_filter_anisotropic "
 			"GL_EXT_texture_lod "
  			"GL_EXT_texture_lod_bias "
  			"GL_EXT_texture_mirror_clamp "