diff --git a/ReactCommon/jschelpers/JSCHelpers.h b/ReactCommon/jschelpers/JSCHelpers.h
index 850b95a690..02a78d9107 100644
--- a/ReactCommon/jschelpers/JSCHelpers.h
+++ b/ReactCommon/jschelpers/JSCHelpers.h
@@ -9,6 +9,10 @@
 #include <jschelpers/JavaScriptCore.h>
 #include <jschelpers/Value.h>
 
+#ifndef RN_EXPORT
+#define RN_EXPORT __attribute__((visibility("default")))
+#endif
+
 namespace facebook {
 namespace react {
 
@@ -47,7 +51,7 @@ JSObjectRef makeFunction(
     const char* name,
     JSFunction function);
 
-void installGlobalFunction(
+RN_EXPORT void installGlobalFunction(
     JSGlobalContextRef ctx,
     const char* name,
     JSFunction function);
diff --git a/ReactCommon/jschelpers/Value.h b/ReactCommon/jschelpers/Value.h
index 92dce0834f..0cc58418e5 100644
--- a/ReactCommon/jschelpers/Value.h
+++ b/ReactCommon/jschelpers/Value.h
@@ -307,15 +307,15 @@ public:
     return getType() == kJSTypeObject;
   }
 
-  Object asObject() const;
+  RN_EXPORT Object asObject() const;
 
   bool isString() const {
     return getType() == kJSTypeString;
   }
 
-  String toString() const;
+  RN_EXPORT String toString() const;
 
-  static Value makeError(JSContextRef ctx, const char *error);
+  RN_EXPORT static Value makeError(JSContextRef ctx, const char *error);
 
   static Value makeNumber(JSContextRef ctx, double value) {
     return Value(ctx, JSC_JSValueMakeNumber(ctx, value));