@@ -26,10 +26,11 @@
 #ifdef OF_HAVE_SYS_TYPES_H
 # include <sys/types.h>
 #endif
 
 #import "OFStream.h"
+#import "OFKernelEventObserver.h"
 #import "OFString.h"
 
 #ifdef OF_WINDOWS
 # include <windows.h>
 #endif
@@ -43,10 +44,13 @@
  * @class OFProcess OFProcess.h ObjFW/OFProcess.h
  *
  * @brief A class for stream-like communication with a newly created process.
  */
 @interface OFProcess: OFStream
+#ifndef OF_WINDOWS
+    <OFReadyForReadingObserving, OFReadyForWritingObserving>
+#endif
 {
 #ifndef OF_WINDOWS
 	pid_t _pid;
 	int _readPipe[2], _writePipe[2];
 #else