diff --git a/docs/docs/term_index.xml b/docs/docs/term_index.xml
index 2bfdf8d15..d00933e87 100644
--- a/docs/docs/term_index.xml
+++ b/docs/docs/term_index.xml
@@ -27,7 +27,7 @@
          <term file="api.html" name="thread_pool"/>
          <term link="api.html#thread_pool" name="futures"/>
 
-
+         <term file="dlib/algs.h.html" name="stack_based_memory_block"/>
 
          <term file="compile.html" name="DLIB_ISO_CPP_ONLY"/>
          <term file="compile.html" name="DLIB_NO_GUI_SUPPORT"/>