diff --git a/docs/latex/wx/classes.tex b/docs/latex/wx/classes.tex
index c0d7fb9034..fb000358a0 100644
--- a/docs/latex/wx/classes.tex
+++ b/docs/latex/wx/classes.tex
@@ -144,6 +144,7 @@
 \input mask.tex
 \input mdi.tex
 \input memorydc.tex
+\input fs_mem.tex
 \input strmmem.tex
 \input menu.tex
 \input menuitem.tex