diff --git a/doc/developers/api_c_tests.rst b/doc/developers/api_c_tests.rst
index 74185c29ecf..46f5d3360bd 100644
--- a/doc/developers/api_c_tests.rst
+++ b/doc/developers/api_c_tests.rst
@@ -9,35 +9,40 @@ LTP C API
 
 Core LTP API
 ------------
-
 .. kernel-doc:: ../../include/tst_res_flags.h
 .. kernel-doc:: ../../include/tst_test.h
-.. kernel-doc:: ../../include/tst_kernel.h
-
-Option parsing
---------------
-
-.. kernel-doc:: ../../include/tst_parse.h
 
-Guarded buffers
----------------
-
-.. kernel-doc:: ../../include/tst_buffers.h
+Capabilities
+------------
+.. kernel-doc:: ../../include/tst_capability.h
 
 Checkpoints
 -----------
 
 .. kernel-doc:: ../../include/tst_checkpoint.h
 
-Capabilities
-------------
+Crypto
+------
+.. kernel-doc:: ../../include/tst_crypto.h
+.. kernel-doc:: ../../include/tst_af_alg.h
 
-.. kernel-doc:: ../../include/tst_capability.h
+Guarded buffers
+---------------
+.. kernel-doc:: ../../include/tst_buffers.h
 
-libltpswap
-----------
-.. kernel-doc:: ../../include/libswap.h
+Kernel
+------
+.. kernel-doc:: ../../include/tst_kernel.h
+
+Option parsing
+--------------
+
+.. kernel-doc:: ../../include/tst_parse.h
 
 Temporary directory
 -------------------
 .. kernel-doc:: ../../include/tst_tmpdir.h
+
+LTP libraries
+-------------
+.. kernel-doc:: ../../include/libswap.h
diff --git a/include/libswap.h b/include/libswap.h
index 1389b585772..6904e8f45b3 100644
--- a/include/libswap.h
+++ b/include/libswap.h
@@ -5,7 +5,9 @@
  * Author: Stanislav Kholmanskikh <stanislav.kholmanskikh@oracle.com>
  */
 
-/*
+/**
+ * DOC: libltpswap
+ *
  * Contains common content for all swapon/swapoff tests.
  */