diff --git a/BLAS/SRC/cgemmtr.f b/BLAS/SRC/cgemmtr.f
index 84bd22277..68063cbda 100644
--- a/BLAS/SRC/cgemmtr.f
+++ b/BLAS/SRC/cgemmtr.f
@@ -172,7 +172,7 @@
 *
 *> \author Martin Koehler
 *
-*> \ingroup gemm
+*> \ingroup gemmtr
 *
 *> \par Further Details:
 *  =====================
diff --git a/BLAS/SRC/dgemmtr.f b/BLAS/SRC/dgemmtr.f
index acaaa351e..74e0ce0da 100644
--- a/BLAS/SRC/dgemmtr.f
+++ b/BLAS/SRC/dgemmtr.f
@@ -172,7 +172,7 @@
 *
 *> \author Martin Koehler
 *
-*> \ingroup gemm
+*> \ingroup gemmtr
 *
 *> \par Further Details:
 *  =====================
diff --git a/BLAS/SRC/sgemmtr.f b/BLAS/SRC/sgemmtr.f
index 1f0ed17bf..1aeff65e0 100644
--- a/BLAS/SRC/sgemmtr.f
+++ b/BLAS/SRC/sgemmtr.f
@@ -172,7 +172,7 @@
 *
 *> \author Martin Koehler
 *
-*> \ingroup gemm
+*> \ingroup gemmtr
 *
 *> \par Further Details:
 *  =====================
diff --git a/BLAS/SRC/zgemmtr.f b/BLAS/SRC/zgemmtr.f
index 5907a4d53..9f3048802 100644
--- a/BLAS/SRC/zgemmtr.f
+++ b/BLAS/SRC/zgemmtr.f
@@ -172,7 +172,7 @@
 *
 *> \author Martin Koehler
 *
-*> \ingroup gemm
+*> \ingroup gemmtr
 *
 *> \par Further Details:
 *  =====================
diff --git a/DOCS/groups-usr.dox b/DOCS/groups-usr.dox
index cbd747165..0234f83d9 100644
--- a/DOCS/groups-usr.dox
+++ b/DOCS/groups-usr.dox
@@ -961,6 +961,8 @@ https://www.netlib.org/xblas/
         @defgroup blas3_grp         Level 3 BLAS: matrix-matrix ops
         @{
             @defgroup gemm          gemm:           general matrix-matrix multiply
+            @defgroup gemmtr        gemmtr:         general matrix-matrix multiply with triangular output
+
 
             @defgroup hemm          {he,sy}mm:      Hermitian/symmetric matrix-matrix multiply
             @defgroup herk          {he,sy}rk:      Hermitian/symmetric rank-k update