diff --git a/Docs/src/compiler.but b/Docs/src/compiler.but
index e3441057..cf02c310 100644
--- a/Docs/src/compiler.but
+++ b/Docs/src/compiler.but
@@ -178,6 +178,10 @@ Time when the script started compiling according to the current locale.
 
 Date & time of the last modification to the script file according to the current locale.
 
+\S1{prensisversion} $\{NSIS_VERSION\}
+
+NSIS version used to build the script.
+
 \S1{scopepredefines} Scope Predefines
 
 Standard predefines that contain information of the current code scope.