diff --git a/src/panfrost/bifrost/bi_opt_cse.c b/src/panfrost/bifrost/bi_opt_cse.c
index bf1122e61cb..d33d2d1a441 100644
--- a/src/panfrost/bifrost/bi_opt_cse.c
+++ b/src/panfrost/bifrost/bi_opt_cse.c
@@ -126,7 +126,10 @@ instr_can_cse(const bi_instr *I)
                 break;
         }
 
-        if (bi_opcode_props[I->op].message)
+        /* Be conservative about which message-passing instructions we CSE,
+         * since most are not pure even within a thread.
+         */
+        if (bi_opcode_props[I->op].message && I->op != BI_OPCODE_LEA_BUF_IMM)
                 return false;
 
         if (I->branch_target)