diff --git a/src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c b/src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c
index ca46e505d6a..bac914baa16 100644
--- a/src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c
+++ b/src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c
@@ -3047,7 +3047,7 @@ emit_tex(struct ntv_context *ctx, nir_tex_instr *tex)
    }
 
    if (proj && coord_components > 0) {
-      SpvId constituents[coord_components + 1];
+      SpvId constituents[NIR_MAX_VEC_COMPONENTS + 1];
       if (coord_components == 1)
          constituents[0] = coord;
       else {