@@ -18,10 +18,11 @@
 
 #include <assert.h>
 
 #import "OFRunLoop.h"
 #import "OFDictionary.h"
+#import "OFStreamObserver.h"
 #ifdef OF_HAVE_THREADS
 # import "OFThread.h"
 # import "OFMutex.h"
 #endif
 #import "OFSortedList.h"