diff --git a/ReactCommon/cxxreact/JSBigString.cpp b/ReactCommon/cxxreact/JSBigString.cpp
index 325ac35325b..57baa283399 100644
--- a/ReactCommon/cxxreact/JSBigString.cpp
+++ b/ReactCommon/cxxreact/JSBigString.cpp
@@ -110,6 +110,9 @@ static off_t maybeRemap(char *data, size_t size, int fd) {
 #endif // WITH_FBREMAP
 
 const char *JSBigFileString::c_str() const {
+  if (m_size == 0) {
+    return "";
+  }
   if (!m_data) {
     m_data =
       (const char *) mmap(0, m_size, PROT_READ, MAP_PRIVATE, m_fd, m_mapOff);
diff --git a/ReactCommon/jsiexecutor/jsireact/JSIExecutor.cpp b/ReactCommon/jsiexecutor/jsireact/JSIExecutor.cpp
index 351d26fe067..e261dc574b0 100644
--- a/ReactCommon/jsiexecutor/jsireact/JSIExecutor.cpp
+++ b/ReactCommon/jsiexecutor/jsireact/JSIExecutor.cpp
@@ -161,6 +161,10 @@ void JSIExecutor::registerBundle(
     bundleRegistry_->registerBundle(bundleId, bundlePath);
   } else {
     auto script = JSBigFileString::fromPath(bundlePath);
+    if (script->size() == 0) {
+      throw std::invalid_argument(
+          "Empty bundle registered with ID " + tag + " from " + bundlePath);
+    }
     runtime_->evaluateJavaScript(
         std::make_unique<BigStringBuffer>(std::move(script)),
         JSExecutor::getSyntheticBundlePath(bundleId, bundlePath));