diff --git a/cpukit/include/rtems/rtems/asr.h b/cpukit/include/rtems/rtems/asr.h
index f58d60790d..1b0af08a0e 100644
--- a/cpukit/include/rtems/rtems/asr.h
+++ b/cpukit/include/rtems/rtems/asr.h
@@ -3,6 +3,8 @@
 /**
  * @file
  *
+ * @ingroup RTEMSImplClassicSignal
+ *
  * @brief This header file defines the parts of the Signal Manager API.
  */
 
diff --git a/cpukit/include/rtems/rtems/signal.h b/cpukit/include/rtems/rtems/signal.h
index c9fbd79b5d..9272f807bc 100644
--- a/cpukit/include/rtems/rtems/signal.h
+++ b/cpukit/include/rtems/rtems/signal.h
@@ -3,6 +3,8 @@
 /**
  * @file
  *
+ * @ingroup RTEMSImplClassicSignal
+ *
  * @brief This header file defines the parts of the Signal Manager API.
  */