diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index be542dd6797..d6c14afe265 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -654,6 +654,9 @@ _mesa_init_constants(struct gl_constants *consts, gl_api api)
    /* GL_EXT_provoking_vertex */
    consts->QuadsFollowProvokingVertexConvention = GL_TRUE;
 
+   /** GL_ARB_viewport_array */
+   consts->LayerAndVPIndexProvokingVertex = GL_UNDEFINED_VERTEX;
+
    /* GL_EXT_transform_feedback */
    consts->MaxTransformFeedbackBuffers = MAX_FEEDBACK_BUFFERS;
    consts->MaxTransformFeedbackSeparateComponents = 4 * MAX_FEEDBACK_ATTRIBS;
diff --git a/src/mesa/main/get_hash_params.py b/src/mesa/main/get_hash_params.py
index 9b22b91ac1b..3019533caae 100644
--- a/src/mesa/main/get_hash_params.py
+++ b/src/mesa/main/get_hash_params.py
@@ -851,8 +851,8 @@ descriptor=[
   [ "MAX_VIEWPORTS", "CONTEXT_INT(Const.MaxViewports), extra_ARB_viewport_array" ],
   [ "VIEWPORT_SUBPIXEL_BITS", "CONTEXT_INT(Const.ViewportSubpixelBits), extra_ARB_viewport_array" ],
   [ "VIEWPORT_BOUNDS_RANGE", "CONTEXT_FLOAT2(Const.ViewportBounds), extra_ARB_viewport_array" ],
-  [ "LAYER_PROVOKING_VERTEX", "CONTEXT_ENUM(Light.ProvokingVertex), extra_ARB_viewport_array" ],
-  [ "VIEWPORT_INDEX_PROVOKING_VERTEX", "CONTEXT_ENUM(Light.ProvokingVertex), extra_ARB_viewport_array" ],
+  [ "LAYER_PROVOKING_VERTEX", "CONTEXT_ENUM(Const.LayerAndVPIndexProvokingVertex), extra_ARB_viewport_array" ],
+  [ "VIEWPORT_INDEX_PROVOKING_VERTEX", "CONTEXT_ENUM(Const.LayerAndVPIndexProvokingVertex), extra_ARB_viewport_array" ],
 
 # GL_ARB_gpu_shader5
   [ "MAX_GEOMETRY_SHADER_INVOCATIONS", "CONST(MAX_GEOMETRY_SHADER_INVOCATIONS), extra_ARB_gpu_shader5" ],
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index d425571ba1e..6c8cc5925f1 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -3449,6 +3449,9 @@ struct gl_constants
    /** GL_EXT_provoking_vertex */
    GLboolean QuadsFollowProvokingVertexConvention;
 
+   /** GL_ARB_viewport_array */
+   GLenum LayerAndVPIndexProvokingVertex;
+
    /** OpenGL version 3.0 */
    GLbitfield ContextFlags;  /**< Ex: GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT */