diff --git a/src/gallium/drivers/zink/nir_to_spirv/spirv_builder.c b/src/gallium/drivers/zink/nir_to_spirv/spirv_builder.c
index 88eb233e79e..9aa57c44569 100644
--- a/src/gallium/drivers/zink/nir_to_spirv/spirv_builder.c
+++ b/src/gallium/drivers/zink/nir_to_spirv/spirv_builder.c
@@ -758,6 +758,13 @@ spirv_builder_emit_kill(struct spirv_builder *b)
    spirv_buffer_emit_word(&b->instructions, SpvOpKill | (1 << 16));
 }
 
+void
+spirv_builder_emit_demote(struct spirv_builder *b)
+{
+   spirv_buffer_prepare(&b->instructions, b->mem_ctx, 1);
+   spirv_buffer_emit_word(&b->instructions, SpvOpDemoteToHelperInvocation | (1 << 16));
+}
+
 SpvId
 spirv_builder_emit_vote(struct spirv_builder *b, SpvOp op, SpvId src)
 {
diff --git a/src/gallium/drivers/zink/nir_to_spirv/spirv_builder.h b/src/gallium/drivers/zink/nir_to_spirv/spirv_builder.h
index 2d5887e19a4..f4515deea5c 100644
--- a/src/gallium/drivers/zink/nir_to_spirv/spirv_builder.h
+++ b/src/gallium/drivers/zink/nir_to_spirv/spirv_builder.h
@@ -268,6 +268,9 @@ spirv_builder_set_phi_operand(struct spirv_builder *b, size_t position,
 void
 spirv_builder_emit_kill(struct spirv_builder *b);
 
+void
+spirv_builder_emit_demote(struct spirv_builder *b);
+
 SpvId
 spirv_builder_emit_vote(struct spirv_builder *b, SpvOp op, SpvId src);