diff --git a/ISLE/isle.cpp b/ISLE/isle.cpp
index e3483cd5..e7214bf2 100644
--- a/ISLE/isle.cpp
+++ b/ISLE/isle.cpp
@@ -595,7 +595,7 @@ void Isle::tick(BOOL sleepIfNotNextFrame)
           return;
         }
 
-        ds.m_atomId = stream->atom;
+        ds.setAtomId(stream->atom);
         ds.m_unk24 = 0xFFFF;
         ds.m_unk1c = 0;
         VideoManager()->EnableFullScreenMovie(TRUE, TRUE);
@@ -604,7 +604,7 @@ void Isle::tick(BOOL sleepIfNotNextFrame)
           return;
         }
       } else {
-        ds.m_atomId = stream->atom;
+        ds.setAtomId(stream->atom);
         ds.m_unk24 = 0xFFFF;
         ds.m_unk1c = 0;
         if (Start(&ds) != SUCCESS) {
diff --git a/LEGO1/mxdsaction.h b/LEGO1/mxdsaction.h
index d76f6930..23f3d7f0 100644
--- a/LEGO1/mxdsaction.h
+++ b/LEGO1/mxdsaction.h
@@ -47,6 +47,10 @@ class MxDSAction
   int m_unk8c;
   int m_unk90;
 
+  void setAtomId(MxAtomId &atomId) {
+      this->m_atomId = atomId;
+  }
+
 };
 
 #endif // MXDSACTION_H