diff --git a/openpose_ros/src/openpose.cpp b/openpose_ros/src/openpose.cpp
index 314c74c..ebe1f4a 100644
--- a/openpose_ros/src/openpose.cpp
+++ b/openpose_ros/src/openpose.cpp
@@ -80,15 +80,15 @@ void OpenPose::start()
 
 bool OpenPose::waitAndEmplace(std::shared_ptr<std::vector<std::shared_ptr<op::Datum>>> &datumToProcess)
 {
-    opWrapper.waitAndEmplace(datumToProcess);
+    return opWrapper.waitAndEmplace(datumToProcess);
 }
 
 bool OpenPose::waitAndPop(std::shared_ptr<std::vector<std::shared_ptr<op::Datum>>> &datumProcessed)
 {
-    opWrapper.waitAndPop(datumProcessed);
+    return opWrapper.waitAndPop(datumProcessed);
 }
 
 void OpenPose::stop()
 {
     opWrapper.stop();
-}
\ No newline at end of file
+}