diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog
index aa4a9ce2f0..8c7c3dae0b 100644
--- a/gdb/doc/ChangeLog
+++ b/gdb/doc/ChangeLog
@@ -1,3 +1,10 @@
+2017-06-20  Sergio Durigan Junior  <sergiodj@redhat.com>
+
+	PR gdb/21606
+	* python.texi (Python representation of Symbols.): Replace
+	SYMBOL_FUNCTION_DOMAIN by SYMBOL_FUNCTIONS_DOMAIN, fixing typo.
+	* guile.texi (Guile representation of Symbols.): Likewise.
+
 2017-06-11  Simon Marchi  <simon.marchi@ericsson.com>
 
 	* gdb.texinfo (Optional Messages about Internal Happenings):
diff --git a/gdb/doc/guile.texi b/gdb/doc/guile.texi
index 9ae980e38c..0d41f11c5e 100644
--- a/gdb/doc/guile.texi
+++ b/gdb/doc/guile.texi
@@ -2769,7 +2769,7 @@ This domain contains names of labels (for gotos).
 This domain holds a subset of the @code{SYMBOLS_VAR_DOMAIN}; it
 contains everything minus functions and types.
 
-@item SYMBOL_FUNCTION_DOMAIN
+@item SYMBOL_FUNCTIONS_DOMAIN
 This domain contains all functions.
 
 @item SYMBOL_TYPES_DOMAIN
diff --git a/gdb/doc/python.texi b/gdb/doc/python.texi
index ee4f7a21d8..32d7939e66 100644
--- a/gdb/doc/python.texi
+++ b/gdb/doc/python.texi
@@ -4559,7 +4559,7 @@ This domain holds a subset of the @code{SYMBOLS_VAR_DOMAIN}; it
 contains everything minus functions and types.
 
 @vindex SYMBOL_FUNCTIONS_DOMAIN
-@item gdb.SYMBOL_FUNCTION_DOMAIN
+@item gdb.SYMBOL_FUNCTIONS_DOMAIN
 This domain contains all functions.
 
 @vindex SYMBOL_TYPES_DOMAIN