1 files changed, 2 insertions, 1 deletions
diff --git a/src/wasm-binary-writer.c b/src/wasm-binary-writer.c
index 339a0655..6d3653e4 100644
--- a/src/wasm-binary-writer.c
+++ b/src/wasm-binary-writer.c
@@ -532,7 +532,8 @@ static void write_expr_list(Context* ctx,
 static void write_init_expr(Context* ctx,
                             const WasmModule* module,
                             const WasmExpr* expr) {
-  write_expr(ctx, module, NULL, expr);
+  if (expr)
+    write_expr(ctx, module, NULL, expr);
   write_opcode(&ctx->stream, WASM_OPCODE_END);
 }