diff --git a/src/amd/vulkan/radv_nir_apply_pipeline_layout.c b/src/amd/vulkan/radv_nir_apply_pipeline_layout.c
index b6ae8249337..004999ffeed 100644
--- a/src/amd/vulkan/radv_nir_apply_pipeline_layout.c
+++ b/src/amd/vulkan/radv_nir_apply_pipeline_layout.c
@@ -42,6 +42,7 @@ typedef struct {
 static nir_ssa_def *
 get_scalar_arg(nir_builder *b, unsigned size, struct ac_arg arg)
 {
+   assert(arg.used);
    return nir_load_scalar_arg_amd(b, size, .base = arg.arg_index);
 }