diff --git a/doc/api/_toc.markdown b/doc/api/_toc.markdown
index 58419663ae5..b5e8d6df87c 100644
--- a/doc/api/_toc.markdown
+++ b/doc/api/_toc.markdown
@@ -29,6 +29,7 @@
 * [Child Processes](child_processes.html)
 * [Assertion Testing](assert.html)
 * [TTY](tty.html)
+* [ZLIB](zlib.html)
 * [OS](os.html)
 * [Debugger](debugger.html)
 * Appendixes
diff --git a/doc/api/all.markdown b/doc/api/all.markdown
index 5498d17ddae..37b1a373b5a 100644
--- a/doc/api/all.markdown
+++ b/doc/api/all.markdown
@@ -30,6 +30,7 @@
 @include child_processes
 @include assert
 @include tty
+@include zlib
 @include os
 @include debugger