diff --git a/src/pki.c b/src/pki.c
index 5736264d..0376ac2d 100644
--- a/src/pki.c
+++ b/src/pki.c
@@ -21,7 +21,7 @@
  */
 
 /**
- * @defgroup libssh_pki SSH Public Key Infrastructure
+ * @defgroup libssh_pki The SSH Public Key Infrastructure
  * @ingroup libssh
  *
  * Functions for the creation, importation and manipulation of public and
diff --git a/src/threads.c b/src/threads.c
index db7c216c..64b413b7 100644
--- a/src/threads.c
+++ b/src/threads.c
@@ -20,7 +20,7 @@
  */
 
 /**
- * @defgroup libssh_threads Threading with libssh
+ * @defgroup libssh_threads The SSH threading functions.
  * @ingroup libssh
  *
  * Threading with libssh