diff --git a/tcg/sparc/tcg-target.c b/tcg/sparc/tcg-target.c
index 1526f2c2e71ef6f98f45364bd4eea26784cf0ce6..5468ff5c16375275037124756639d3dfc4f57de0 100644
--- a/tcg/sparc/tcg-target.c
+++ b/tcg/sparc/tcg-target.c
@@ -1470,8 +1470,8 @@ static const TCGTargetOpDef sparc_op_defs[] = {
 
     { INDEX_op_qemu_ld_i32, { "r", "A" } },
     { INDEX_op_qemu_ld_i64, { "R", "A" } },
-    { INDEX_op_qemu_st_i32, { "s", "A" } },
-    { INDEX_op_qemu_st_i64, { "S", "A" } },
+    { INDEX_op_qemu_st_i32, { "sZ", "A" } },
+    { INDEX_op_qemu_st_i64, { "SZ", "A" } },
 
     { -1 },
 };