diff --git a/src/mesa/main/get.c b/src/mesa/main/get.c
index 0b33fa49b5a..e13d6f1cd2d 100644
--- a/src/mesa/main/get.c
+++ b/src/mesa/main/get.c
@@ -714,6 +714,7 @@ find_custom_value(struct gl_context *ctx, const struct value_desc *d, union valu
 
    case GL_MAX_VARYING_FLOATS_ARB:
    case GL_MAX_FRAGMENT_INPUT_COMPONENTS:
+   case GL_MAX_VERTEX_OUTPUT_COMPONENTS:
       v->value_int = ctx->Const.MaxVarying * 4;
       break;
 
diff --git a/src/mesa/main/get_hash_params.py b/src/mesa/main/get_hash_params.py
index fde45379aaf..bd89ae5b340 100644
--- a/src/mesa/main/get_hash_params.py
+++ b/src/mesa/main/get_hash_params.py
@@ -330,6 +330,7 @@ descriptor=[
   [ "MINOR_VERSION", "LOC_CUSTOM, TYPE_INT, 0, extra_gl30_es3" ],
 
   # GL 3.0 / GLES3
+  [ "MAX_VERTEX_OUTPUT_COMPONENTS", "LOC_CUSTOM, TYPE_INT, 0, extra_gl32_es3" ],
   [ "MAX_FRAGMENT_INPUT_COMPONENTS", "LOC_CUSTOM, TYPE_INT, 0, extra_gl32_es3" ],
 
 # GL_ARB_ES3_compatibility