diff --git a/docs/reference/evolution-mail-composer/evolution-mail-composer-docs.sgml.in b/docs/reference/evolution-mail-composer/evolution-mail-composer-docs.sgml.in
index 82059231af..2d34b4795d 100644
--- a/docs/reference/evolution-mail-composer/evolution-mail-composer-docs.sgml.in
+++ b/docs/reference/evolution-mail-composer/evolution-mail-composer-docs.sgml.in
@@ -29,6 +29,10 @@
     <title>API Index</title>
     <xi:include href="xml/api-index-full.xml"><xi:fallback /></xi:include>
   </index>
+  <index id="api-index-3-50" role="3.50">
+    <title>Index of new symbols in 3.50</title>
+    <xi:include href="xml/api-index-3.50.xml"><xi:fallback /></xi:include>
+  </index>
   <index id="api-index-3-44" role="3.44">
     <title>Index of new symbols in 3.44</title>
     <xi:include href="xml/api-index-3.44.xml"><xi:fallback /></xi:include>
diff --git a/docs/reference/evolution-mail-engine/evolution-mail-engine-docs.sgml.in b/docs/reference/evolution-mail-engine/evolution-mail-engine-docs.sgml.in
index 2df4026f03..9d681836b6 100644
--- a/docs/reference/evolution-mail-engine/evolution-mail-engine-docs.sgml.in
+++ b/docs/reference/evolution-mail-engine/evolution-mail-engine-docs.sgml.in
@@ -46,6 +46,10 @@
     <title>API Index</title>
     <xi:include href="xml/api-index-full.xml"><xi:fallback /></xi:include>
   </index>
+  <index id="api-index-3-50" role="3.50">
+    <title>Index of new symbols in 3.50</title>
+    <xi:include href="xml/api-index-3.50.xml"><xi:fallback /></xi:include>
+  </index>
   <index id="api-index-3-34" role="3.34">
     <title>Index of new symbols in 3.34</title>
     <xi:include href="xml/api-index-3.34.xml"><xi:fallback /></xi:include>
diff --git a/docs/reference/evolution-util/evolution-util-docs.sgml.in b/docs/reference/evolution-util/evolution-util-docs.sgml.in
index 36cb175e3f..35b2b57c87 100644
--- a/docs/reference/evolution-util/evolution-util-docs.sgml.in
+++ b/docs/reference/evolution-util/evolution-util-docs.sgml.in
@@ -333,6 +333,10 @@
     <title>Index</title>
     <xi:include href="xml/api-index-full.xml"><xi:fallback /></xi:include>
   </index>
+  <index id="api-index-3-50" role="3.50">
+    <title>Index of new symbols in 3.50</title>
+    <xi:include href="xml/api-index-3.50.xml"><xi:fallback /></xi:include>
+  </index>
   <index id="api-index-3-48" role="3.48">
     <title>Index of new symbols in 3.48</title>
     <xi:include href="xml/api-index-3.48.xml"><xi:fallback /></xi:include>