diff --git a/src/wasm-binary.h b/src/wasm-binary.h
index 06d988c6a8d..f7d4e1c4ed5 100644
--- a/src/wasm-binary.h
+++ b/src/wasm-binary.h
@@ -21,10 +21,9 @@
 #ifndef wasm_wasm_binary_h
 #define wasm_wasm_binary_h
 
-// Default to using the legacy encodings. Switch this when WasmGC ships.
-// Override the default with USE_STANDARD_GC_ENCODINGS or
-// USE_LEGACY_GC_ENCODINGS.
-#define STANDARD_GC_ENCODINGS 0
+// Default to using the standard encodings. Override the default with
+// USE_STANDARD_GC_ENCODINGS or USE_LEGACY_GC_ENCODINGS.
+#define STANDARD_GC_ENCODINGS 1
 
 #ifdef USE_STANDARD_GC_ENCODINGS
 #ifdef USE_LEGACY_GC_ENCODINGS
diff --git a/test/lit/binary/stacky-nn-tuple.test.wasm b/test/lit/binary/stacky-nn-tuple.test.wasm
index 37c8af137a2..17f77788bf5 100644
Binary files a/test/lit/binary/stacky-nn-tuple.test.wasm and b/test/lit/binary/stacky-nn-tuple.test.wasm differ
diff --git a/test/unit/input/gc_target_feature.wasm b/test/unit/input/gc_target_feature.wasm
index 30b1b21b66e..bf2ecf9348b 100644
Binary files a/test/unit/input/gc_target_feature.wasm and b/test/unit/input/gc_target_feature.wasm differ