diff --git a/React/Base/RCTProfile.h b/React/Base/RCTProfile.h
index 2718871d2..469a81552 100644
--- a/React/Base/RCTProfile.h
+++ b/React/Base/RCTProfile.h
@@ -20,8 +20,8 @@
  * before before using it.
  */
 
-NSString *const RCTProfileDidStartProfiling;
-NSString *const RCTProfileDidEndProfiling;
+RCT_EXTERN NSString *const RCTProfileDidStartProfiling;
+RCT_EXTERN NSString *const RCTProfileDidEndProfiling;
 
 #if RCT_DEV