diff --git a/renderdoc/driver/gl/gl_shader_refl.cpp b/renderdoc/driver/gl/gl_shader_refl.cpp
index 7c9219dee..c05e309ee 100644
--- a/renderdoc/driver/gl/gl_shader_refl.cpp
+++ b/renderdoc/driver/gl/gl_shader_refl.cpp
@@ -36,6 +36,7 @@ rdcstr DoStringise(const FFVertexOutput &el)
   {
     STRINGISE_ENUM_CLASS_NAMED(PointSize, "gl_PointSize");
     STRINGISE_ENUM_CLASS_NAMED(ClipDistance, "gl_ClipDistance");
+    STRINGISE_ENUM_CLASS_NAMED(CullDistance, "gl_CullDistance");
     STRINGISE_ENUM_CLASS_NAMED(ClipVertex, "gl_ClipVertex");
     STRINGISE_ENUM_CLASS_NAMED(FrontColor, "gl_FrontColor");
     STRINGISE_ENUM_CLASS_NAMED(BackColor, "gl_BackColor");
diff --git a/renderdoc/driver/gl/gl_shader_refl.h b/renderdoc/driver/gl/gl_shader_refl.h
index 27f099844..2a85054ba 100644
--- a/renderdoc/driver/gl/gl_shader_refl.h
+++ b/renderdoc/driver/gl/gl_shader_refl.h
@@ -33,6 +33,7 @@ enum class FFVertexOutput : uint32_t
   PointSize,
   First = PointSize,
   ClipDistance,
+  CullDistance,
 
   // Compatibility implicit varyings, generally only comes back from glslang's reflection
   ClipVertex,