diff --git a/target/riscv/insn_trans/trans_rvb.c.inc b/target/riscv/insn_trans/trans_rvb.c.inc
index f9bd3b7..e8519a6 100644
--- a/target/riscv/insn_trans/trans_rvb.c.inc
+++ b/target/riscv/insn_trans/trans_rvb.c.inc
@@ -19,25 +19,25 @@
  */
 
 #define REQUIRE_ZBA(ctx) do {                    \
-    if (ctx->cfg_ptr->ext_zba) {                 \
+    if (!ctx->cfg_ptr->ext_zba) {                \
         return false;                            \
     }                                            \
 } while (0)
 
 #define REQUIRE_ZBB(ctx) do {                    \
-    if (ctx->cfg_ptr->ext_zbb) {                 \
+    if (!ctx->cfg_ptr->ext_zbb) {                \
         return false;                            \
     }                                            \
 } while (0)
 
 #define REQUIRE_ZBC(ctx) do {                    \
-    if (ctx->cfg_ptr->ext_zbc) {                 \
+    if (!ctx->cfg_ptr->ext_zbc) {                \
         return false;                            \
     }                                            \
 } while (0)
 
 #define REQUIRE_ZBS(ctx) do {                    \
-    if (ctx->cfg_ptr->ext_zbs) {                 \
+    if (!ctx->cfg_ptr->ext_zbs) {                \
         return false;                            \
     }                                            \
 } while (0)