diff --git a/target/riscv/translate.c b/target/riscv/translate.c
index c6e8739614..62a7d7e4c7 100644
--- a/target/riscv/translate.c
+++ b/target/riscv/translate.c
@@ -47,7 +47,7 @@ typedef struct DisasContext {
     bool virt_enabled;
     uint32_t opcode;
     uint32_t mstatus_fs;
-    uint32_t misa;
+    target_ulong misa;
     uint32_t mem_idx;
     /* Remember the rounding mode encoded in the previous fp instruction,
        which we have already installed into env->fp_status.  Or -1 for