diff --git a/src/fuzz.cpp b/src/fuzz.cpp
index 35bdd71..f6fbbc8 100644
--- a/src/fuzz.cpp
+++ b/src/fuzz.cpp
@@ -9,12 +9,19 @@ std::pair<std::string, parser3::Status> runStreaming(std::string copy,
   SerializeState state;
   auto c = serializeCallbacks();
   parser3::Parser3 parser(&c, &state);
-  for (int i = 0; i < copy.size(); i += stride) {
-    auto s =
-        parser.parse(copy.data() + i, std::min<int>(stride, copy.size() - i));
+  if (stride == 0) {
+    auto s = parser.parse(copy.data(), copy.size());
     if (s != parser3::S_AGAIN) {
       return {state.result, s};
     }
+  } else {
+    for (int i = 0; i < copy.size(); i += stride) {
+      auto s =
+          parser.parse(copy.data() + i, std::min<int>(stride, copy.size() - i));
+      if (s != parser3::S_AGAIN) {
+        return {state.result, s};
+      }
+    }
   }
   auto s = parser.parse(nullptr, 0);
   if (s != parser3::S_OK) {
@@ -105,7 +112,7 @@ void testStringRoundTrip(std::string_view s) {
   }
   for (int stride = 0; stride < 16; ++stride) {
     auto escaped = "\"" + escapeAsJsonString(s) + "\"";
-    auto parsed = toValue(std::move(escaped));
+    auto parsed = toValue(escaped, stride);
     if (!parsed.has_value()) {
       abort();
     }
diff --git a/src/json_value.h b/src/json_value.h
index 5677ade..237dfdd 100644
--- a/src/json_value.h
+++ b/src/json_value.h
@@ -192,7 +192,7 @@ inline std::string toString(JsonValue const &jsonValue) {
   __builtin_unreachable();
 }
 
-inline std::optional<JsonValue> toValue(std::string copy, int stride = 0) {
+inline std::optional<JsonValue> toValue(std::string copy, int stride) {
   ReadValueState state;
   auto c = readValueCallbacks();
   parser3::Parser3 parser(&c, &state);
@@ -202,7 +202,8 @@ inline std::optional<JsonValue> toValue(std::string copy, int stride = 0) {
     }
   } else {
     for (int i = 0; i < copy.size(); i += stride) {
-      if (parser.parse(copy.data(), std::min<int>(stride, copy.size() - i)) !=
+      if (parser.parse(copy.data() + i,
+                       std::min<int>(stride, copy.size() - i)) !=
           parser3::S_AGAIN) {
         return std::nullopt;
       }