diff --git a/daemon/README.rst b/daemon/README.rst
index 1c625877b0d43950806b26e1cc2492bfdc70c359..943b87c13e260367a47e4bb9ae840fbf9c6c5332 100644
--- a/daemon/README.rst
+++ b/daemon/README.rst
@@ -258,11 +258,13 @@ Modules configuration
 
 The daemon provides an interface for dynamic loading of :ref:`daemon modules <modules-implemented>`.
 
-.. tip:: Use syntactic sugar for module loading. Declaring a variable ``modules`` equals to loading a table of modules.
+.. tip:: Use declarative interface for module loading.
 
          .. code-block:: lua
 
-		modules = { hints = {file = '/etc/hosts'} }
+		modules = {
+			hints = {file = '/etc/hosts'}
+		}
 
          Equals to:
 
@@ -294,8 +296,8 @@ Cache configuration
 ^^^^^^^^^^^^^^^^^^^
 
 The cache in Knot DNS Resolver is persistent with LMDB backend, this means that the daemon doesn't lose
-the cached data on restart or crash to avoid cold-starts. Interestingly the cache may be reused between cache
-daemons or manipulated from other processes, making for example synchronisation between load-balanced recursors possible.
+the cached data on restart or crash to avoid cold-starts. The cache may be reused between cache
+daemons or manipulated from other processes, making for example synchronised load-balanced recursors possible.
 
 .. function:: cache.open(max_size)
 
diff --git a/lib/defines.h b/lib/defines.h
index 944d02c5ff6c1d1dc3fecfa548efbbd7703a7510..cde6352f242839215de03c12e39de9949f2584ed 100644
--- a/lib/defines.h
+++ b/lib/defines.h
@@ -14,7 +14,7 @@
     along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-/** \addtogroup resolution
+/** \addtogroup utils
  * @{
  */
 
@@ -34,6 +34,7 @@
 
 /*
  * Connection limits.
+ * @cond internal
  */
 #define KR_CONN_RTT_MAX 5000
 
@@ -48,5 +49,6 @@
 #define KR_DNS_PORT   53
 #define KR_EDNS_VERSION 0
 #define KR_EDNS_PAYLOAD 4096
+/* @endcond */
 
 /** @} */
diff --git a/lib/module.h b/lib/module.h
index 40dc27bb5929aea7d087ee94a5c1c684ee5a7a35..bca4d3c626bab755a22bff2eef1d1106deda1afc 100644
--- a/lib/module.h
+++ b/lib/module.h
@@ -32,6 +32,7 @@ struct kr_prop;
 
 /*
  * API definition.
+ * @cond internal
  */
 typedef uint32_t (module_api_cb)(void);
 typedef int (module_init_cb)(struct kr_module *);
@@ -39,13 +40,9 @@ typedef int (module_deinit_cb)(struct kr_module *);
 typedef int (module_config_cb)(struct kr_module *, const char *);
 typedef const knot_layer_api_t* (module_layer_cb)(void);
 typedef struct kr_prop *(module_prop_cb)(void);
-
-#define KR_MODULE_API ((uint32_t) 0x20150401)
-
-/**
- * Property callback.
- */
 typedef char *(kr_prop_cb)(void *, struct kr_module *, const char *);
+#define KR_MODULE_API ((uint32_t) 0x20150401)
+/* @endcond */
 
 /**
  * Module property (named callable).
diff --git a/lib/utils.h b/lib/utils.h
index 215261dcc98ce088c507800413c1774a6b1f9f89..24f8c4af2ce0c4751655dcf321dc0e17e00a9292 100644
--- a/lib/utils.h
+++ b/lib/utils.h
@@ -24,6 +24,7 @@
 
 /*
  * General-purpose attributes.
+ * @cond internal
  */
 #define auto_free __attribute__((cleanup(_cleanup_free)))
 extern void _cleanup_free(char **p);
@@ -31,6 +32,7 @@ extern void _cleanup_free(char **p);
 extern void _cleanup_close(int *p);
 #define auto_fclose __attribute__((cleanup(_cleanup_fclose)))
 extern void _cleanup_fclose(FILE **p);
+/* @endcond */
 
 /*
  * Defines.