diff --git a/src/gallium/drivers/etnaviv/etnaviv_shader.c b/src/gallium/drivers/etnaviv/etnaviv_shader.c
index e0054f94332..d0567d717a3 100644
--- a/src/gallium/drivers/etnaviv/etnaviv_shader.c
+++ b/src/gallium/drivers/etnaviv/etnaviv_shader.c
@@ -147,6 +147,7 @@ etna_link_shaders(struct etna_context *ctx, struct compiled_shader_state *cs,
                     COND(last_varying_2x, VIVS_RA_CONTROL_LAST_VARYING_2X);
 
    cs->PA_ATTRIBUTE_ELEMENT_COUNT = VIVS_PA_ATTRIBUTE_ELEMENT_COUNT_COUNT(link.num_varyings);
+   STATIC_ASSERT(VIVS_PA_SHADER_ATTRIBUTES__LEN >= ETNA_NUM_VARYINGS);
    for (int idx = 0; idx < link.num_varyings; ++idx)
       cs->PA_SHADER_ATTRIBUTES[idx] = link.varyings[idx].pa_attributes;