diff --git a/Libraries/Image/RCTImageStoreManager.h b/Libraries/Image/RCTImageStoreManager.h
index 9d7ddffd476829..2bdffbe3051acd 100644
--- a/Libraries/Image/RCTImageStoreManager.h
+++ b/Libraries/Image/RCTImageStoreManager.h
@@ -11,7 +11,7 @@
  * Set and get cached image data asynchronously. It is safe to call these from any
  * thread. The callbacks will be called on an unspecified thread.
  */
-- (void)removeImageForTag:(NSString *)imageTag withBlock:(void (^)())block;
+- (void)removeImageForTag:(NSString *)imageTag withBlock:(void (^)(void))block;
 - (void)storeImageData:(NSData *)imageData withBlock:(void (^)(NSString *imageTag))block;
 - (void)getImageDataForTag:(NSString *)imageTag withBlock:(void (^)(NSData *imageData))block;
 
diff --git a/Libraries/Image/RCTImageStoreManager.m b/Libraries/Image/RCTImageStoreManager.m
index d57971de6c8048..87fe71387eac14 100644
--- a/Libraries/Image/RCTImageStoreManager.m
+++ b/Libraries/Image/RCTImageStoreManager.m
@@ -37,7 +37,7 @@ - (float)handlerPriority
     return 1;
 }
 
-- (void)removeImageForTag:(NSString *)imageTag withBlock:(void (^)())block
+- (void)removeImageForTag:(NSString *)imageTag withBlock:(void (^)(void))block
 {
   dispatch_async(_methodQueue, ^{
     [self removeImageForTag:imageTag];