diff --git a/src/panfrost/bifrost/bi_opt_dce.c b/src/panfrost/bifrost/bi_opt_dce.c
index 9b3595265e1..24c43cae4b6 100644
--- a/src/panfrost/bifrost/bi_opt_dce.c
+++ b/src/panfrost/bifrost/bi_opt_dce.c
@@ -77,7 +77,7 @@ bi_opt_dead_code_eliminate(bi_context *ctx)
 
 /* Post-RA liveness-based dead code analysis to clean up results of bundling */
 
-uint64_t
+uint64_t MUST_CHECK
 bi_postra_liveness_ins(uint64_t live, bi_instr *ins)
 {
         bi_foreach_dest(ins, d) {
diff --git a/src/panfrost/bifrost/compiler.h b/src/panfrost/bifrost/compiler.h
index 902239236fc..010b0a4c6e5 100644
--- a/src/panfrost/bifrost/compiler.h
+++ b/src/panfrost/bifrost/compiler.h
@@ -1133,7 +1133,7 @@ void bi_compute_liveness(bi_context *ctx);
 void bi_liveness_ins_update(uint8_t *live, bi_instr *ins, unsigned max);
 
 void bi_postra_liveness(bi_context *ctx);
-uint64_t bi_postra_liveness_ins(uint64_t live, bi_instr *ins);
+uint64_t MUST_CHECK bi_postra_liveness_ins(uint64_t live, bi_instr *ins);
 
 /* Layout */