diff --git a/README.md b/README.md
index b7e5fbb..f49f11a 100644
--- a/README.md
+++ b/README.md
@@ -10,8 +10,7 @@ ctlseqs
 =======
 
   The ctlseqs library provides C API for handling ECMA-35/ECMA-48 compatible
-  control functions, which is commonly used for communication between terminal
-  emulators and text-based programs.
+  control functions.
 
   ctlseqs is free software, licensed under the terms of the GNU General Public
   License, either version 3, or any later version of the license. See COPYING
@@ -19,8 +18,10 @@ ctlseqs
 
   See INSTALL.md for instructions on how to build and install ctlseqs.
 
-  Visit the [project homepage] for documentation, mailing lists, releases,
-  and everything else about ctlseqs.
+  See `info ctlseqs` for documentation.
+
+  Visit the [project homepage] for online documentation, mailing lists,
+  releases, and everything else about ctlseqs.
 
 
 <!-- Reference Links -->
diff --git a/include/ctlseqs.h b/include/ctlseqs.h
index 9762664..cedfa3f 100644
--- a/include/ctlseqs.h
+++ b/include/ctlseqs.h
@@ -327,8 +327,8 @@
 // Restore DEC Private Mode Values
 #define CTLSEQS_XTRESTORE(is)                      CTLSEQS_CSI "?" is "r"
 // Change Attributes in Rectangular Area
-#define CTLSEQS_DECCARA(t, l, b, r, i)             \
-    CTLSEQS_CSI t ";" l ";" b ";" r ";" i "$r"
+#define CTLSEQS_DECCARA(t, l, b, r, is)            \
+    CTLSEQS_CSI t ";" l ";" b ";" r ";" is "$r"
 // Save cursor
 #define CTLSEQS_SCOSC()                            CTLSEQS_CSI "s"
 // Set left and right margins
@@ -342,8 +342,8 @@
 // Set warning-bell volume
 #define CTLSEQS_DECSWBV(i)                         CTLSEQS_CSI i " t"
 // Reverse Attributes in Rectangular Area
-#define CTLSEQS_DECRARA(t, l, b, r, i)             \
-    CTLSEQS_CSI t ";" l ";" b ";" r ";" i "$t"
+#define CTLSEQS_DECRARA(t, l, b, r, is)            \
+    CTLSEQS_CSI t ";" l ";" b ";" r ";" is "$t"
 // Restore cursor
 #define CTLSEQS_SCORC()                            CTLSEQS_CSI "u"
 // Set margin-bell volume