diff --git a/Include/Sections.nsh b/Include/Sections.nsh
index 683d0726..cd6ffb38 100644
--- a/Include/Sections.nsh
+++ b/Include/Sections.nsh
@@ -24,6 +24,7 @@
 !define SF_RO         16
 !define SF_EXPAND     32
 !define SF_PSELECTED  64
+!define SF_TOGGLED    128
 
 !define SECTION_OFF   0xFFFFFFFE