diff --git a/bacnet-stack/include/dcc.h b/bacnet-stack/include/dcc.h
index c1af9fe6..0438572b 100644
--- a/bacnet-stack/include/dcc.h
+++ b/bacnet-stack/include/dcc.h
@@ -94,7 +94,9 @@ extern "C" {
  *
  * The network management BIBBs prescribe the BACnet capabilities required to
  * interoperably perform network management functions.
-          *//** @defgroup DMDCC Device Management-Device Communication Control (DM-DCC)
+ */
+
+/** @defgroup DMDCC Device Management-Device Communication Control (DM-DCC)
  * @ingroup RDMS
  * 16.1 DeviceCommunicationControl Service <br>
  * The DeviceCommunicationControl service is used by a client BACnet-user to
@@ -107,7 +109,9 @@ extern "C" {
  * "indefinite," meaning communication must be re-enabled by a
  * DeviceCommunicationControl or, if supported, ReinitializeDevice service,
  * not by time.
-          *//** @defgroup NMRC Network Management-Router Configuration (NM-RC)
+ */
+
+/** @defgroup NMRC Network Management-Router Configuration (NM-RC)
  * @ingroup RDMS
  * The A device may query and change the configuration of routers and
  * half-routers.
diff --git a/bacnet-stack/include/readrange.h b/bacnet-stack/include/readrange.h
index bb18be89..e002c020 100644
--- a/bacnet-stack/include/readrange.h
+++ b/bacnet-stack/include/readrange.h
@@ -162,7 +162,9 @@ extern "C" {
  * These BIBBs prescribe the BACnet capabilities required to interoperably
  * perform the trending functions enumerated in clause 22.2.1.4 for the
      * BACnet devices defined therein.
-*//** @defgroup TrendReadRange Trending -Read Range Service (eg, in T-VMT)
+*/
+
+/** @defgroup TrendReadRange Trending -Read Range Service (eg, in T-VMT)
  * @ingroup Trend
  * 15.8 ReadRange Service <br>
  * The ReadRange service is used by a client BACnet-user to read a specific
diff --git a/bacnet-stack/include/rp.h b/bacnet-stack/include/rp.h
index 74f270d3..66ab0327 100644
--- a/bacnet-stack/include/rp.h
+++ b/bacnet-stack/include/rp.h
@@ -125,7 +125,9 @@ extern "C" {
  * These BIBBs prescribe the BACnet capabilities required to interoperably
  * perform the data sharing functions enumerated in 22.2.1.1 for the BACnet
      * devices defined therein.
-*//** @defgroup DSRP Data Sharing -Read Property Service (DS-RP)
+*/
+
+/** @defgroup DSRP Data Sharing -Read Property Service (DS-RP)
  * @ingroup DataShare
  * 15.5 ReadProperty Service <br>
  * The ReadProperty service is used by a client BACnet-user to request the