diff --git a/include/opcode/riscv-opc.h b/include/opcode/riscv-opc.h
index 3eea33a5dae..15e405bc14e 100644
--- a/include/opcode/riscv-opc.h
+++ b/include/opcode/riscv-opc.h
@@ -2720,6 +2720,15 @@ DECLARE_INSN(hsv_b, MATCH_HSV_B, MASK_HSV_B)
 DECLARE_INSN(hsv_h, MATCH_HSV_H, MASK_HSV_H)
 DECLARE_INSN(hsv_w, MATCH_HSV_W, MASK_HSV_W)
 DECLARE_INSN(hsv_d, MATCH_HSV_D, MASK_HSV_D)
+/* Zicbop instructions.  */
+DECLARE_INSN(prefetch_r, MATCH_PREFETCH_R, MASK_PREFETCH_R);
+DECLARE_INSN(prefetch_w, MATCH_PREFETCH_W, MASK_PREFETCH_W);
+DECLARE_INSN(prefetch_i, MATCH_PREFETCH_I, MASK_PREFETCH_I);
+/* Zicbom/Zicboz instructions. */
+DECLARE_INSN(cbo_clean, MATCH_CBO_CLEAN, MASK_CBO_CLEAN);
+DECLARE_INSN(cbo_flush, MATCH_CBO_FLUSH, MASK_CBO_FLUSH);
+DECLARE_INSN(cbo_inval, MATCH_CBO_INVAL, MASK_CBO_INVAL);
+DECLARE_INSN(cbo_zero, MATCH_CBO_ZERO, MASK_CBO_ZERO);
 #endif /* DECLARE_INSN */
 #ifdef DECLARE_CSR
 /* Unprivileged Counter/Timers CSRs.  */