diff --git a/README.md b/README.md
index c982141..425d91a 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ ctlseqs - helper library for terminal control sequences
 
 The ctlseqs library provides C API for manipulating terminal emulators with control sequences.
 
-Ctlseqs is free software. you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ctlseqs is free software. you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
 
 # Getting Started
 
diff --git a/man/ctlseqs.7 b/man/ctlseqs.7
index 55077f5..23ae912 100644
--- a/man/ctlseqs.7
+++ b/man/ctlseqs.7
@@ -1,4 +1,4 @@
-.TH CTLSEQS 7 "Sep 01, 2020" 0.1.0 "Ctlseqs Library Manual"
+.TH CTLSEQS 7 "Sep 01, 2020" 0.1.0 "ctlseqs Library Manual"
 .
 .SH NAME
 ctlseqs - helper library for terminal control sequences
diff --git a/man/ctlseqs_matcher_config.3 b/man/ctlseqs_matcher_config.3
index c4f59ab..e0f9769 100644
--- a/man/ctlseqs_matcher_config.3
+++ b/man/ctlseqs_matcher_config.3
@@ -1,4 +1,4 @@
-.TH CTLSEQS_MATCHER_CONFIG 3 "Sep 01, 2020" 0.1.0 "Ctlseqs Library Manual"
+.TH CTLSEQS_MATCHER_CONFIG 3 "Sep 01, 2020" 0.1.0 "ctlseqs Library Manual"
 .
 .SH NAME
 ctlseqs_matcher_config - configure control sequence matcher
diff --git a/man/ctlseqs_matcher_free.3 b/man/ctlseqs_matcher_free.3
index 844eaf0..de806ba 100644
--- a/man/ctlseqs_matcher_free.3
+++ b/man/ctlseqs_matcher_free.3
@@ -1,4 +1,4 @@
-.TH CTLSEQS_MATCHER_FREE 3 "Sep 01, 2020" 0.1.0 "Ctlseqs Library Manual"
+.TH CTLSEQS_MATCHER_FREE 3 "Sep 01, 2020" 0.1.0 "ctlseqs Library Manual"
 .
 .SH NAME
 ctlseqs_matcher_free - free control sequence matcher
diff --git a/man/ctlseqs_matcher_init.3 b/man/ctlseqs_matcher_init.3
index 11a6f47..f329549 100644
--- a/man/ctlseqs_matcher_init.3
+++ b/man/ctlseqs_matcher_init.3
@@ -1,4 +1,4 @@
-.TH CTLSEQS_MATCHER_INIT 3 "Sep 01, 2020" 0.1.0 "Ctlseqs Library Manual"
+.TH CTLSEQS_MATCHER_INIT 3 "Sep 01, 2020" 0.1.0 "ctlseqs Library Manual"
 .
 .SH NAME
 ctlseqs_matcher_init - initialize control sequence matcher
diff --git a/man/ctlseqs_purge.3 b/man/ctlseqs_purge.3
index cd82296..ac0d8d8 100644
--- a/man/ctlseqs_purge.3
+++ b/man/ctlseqs_purge.3
@@ -1,4 +1,4 @@
-.TH CTLSEQS_PURGE 3 "Sep 01, 2020" 0.1.0 "Ctlseqs Library Manual"
+.TH CTLSEQS_PURGE 3 "Sep 01, 2020" 0.1.0 "ctlseqs Library Manual"
 .
 .SH NAME
 ctlseqs_purge - purge read buffer
diff --git a/man/ctlseqs_read.3 b/man/ctlseqs_read.3
index bf5a445..45d3573 100644
--- a/man/ctlseqs_read.3
+++ b/man/ctlseqs_read.3
@@ -1,4 +1,4 @@
-.TH CTLSEQS_READ 3 "Sep 01, 2020" 0.1.0 "Ctlseqs Library Manual"
+.TH CTLSEQS_READ 3 "Sep 01, 2020" 0.1.0 "ctlseqs Library Manual"
 .
 .SH NAME
 ctlseqs_read - read control sequence
diff --git a/man/ctlseqs_reader_config.3 b/man/ctlseqs_reader_config.3
index d47d1a4..c371ff2 100644
--- a/man/ctlseqs_reader_config.3
+++ b/man/ctlseqs_reader_config.3
@@ -1,4 +1,4 @@
-.TH CTLSEQS_READER_CONFIG 3 "Sep 01, 2020" 0.1.0 "Ctlseqs Library Manual"
+.TH CTLSEQS_READER_CONFIG 3 "Sep 01, 2020" 0.1.0 "ctlseqs Library Manual"
 .
 .SH NAME
 ctlseqs_reader_config - configure control sequence reader
diff --git a/man/ctlseqs_reader_free.3 b/man/ctlseqs_reader_free.3
index bbc6876..b9c3b60 100644
--- a/man/ctlseqs_reader_free.3
+++ b/man/ctlseqs_reader_free.3
@@ -1,4 +1,4 @@
-.TH CTLSEQS_MATCHER_FREE 3 "Sep 01, 2020" 0.1.0 "Ctlseqs Library Manual"
+.TH CTLSEQS_MATCHER_FREE 3 "Sep 01, 2020" 0.1.0 "ctlseqs Library Manual"
 .
 .SH NAME
 ctlseqs_reader_free - free control sequence reader
diff --git a/man/ctlseqs_reader_init.3 b/man/ctlseqs_reader_init.3
index 4aa1fe4..b89515b 100644
--- a/man/ctlseqs_reader_init.3
+++ b/man/ctlseqs_reader_init.3
@@ -1,4 +1,4 @@
-.TH CTLSEQS_READER_INIT 3 "Sep 01, 2020" 0.1.0 "Ctlseqs Library Manual"
+.TH CTLSEQS_READER_INIT 3 "Sep 01, 2020" 0.1.0 "ctlseqs Library Manual"
 .
 .SH NAME
 ctlseqs_reader_init - initialize control sequence reader
diff --git a/src/ctlseqs.c b/src/ctlseqs.c
index ce36758..c825909 100644
--- a/src/ctlseqs.c
+++ b/src/ctlseqs.c
@@ -5,12 +5,12 @@
  * 
  * This file is part of the ctlseqs library.
  *
- * Ctlseqs is free software: you can redistribute it and/or modify
+ * ctlseqs is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation, either version 3 of the License, or
  * (at your option) any later version.
  *
- * Ctlseqs is distributed in the hope that it will be useful,
+ * ctlseqs is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
diff --git a/src/ctlseqs.h b/src/ctlseqs.h
index b04a712..eed0060 100644
--- a/src/ctlseqs.h
+++ b/src/ctlseqs.h
@@ -5,12 +5,12 @@
  * 
  * This file is part of the ctlseqs library.
  *
- * Ctlseqs is free software: you can redistribute it and/or modify
+ * ctlseqs is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation, either version 3 of the License, or
  * (at your option) any later version.
  *
- * Ctlseqs is distributed in the hope that it will be useful,
+ * ctlseqs is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.