diff --git a/Docs/src/log.but b/Docs/src/log.but
index a3ebb706..43359739 100644
--- a/Docs/src/log.but
+++ b/Docs/src/log.but
@@ -4,7 +4,7 @@
 
 \c on|\\<b\\>off\\</b\\>
 
-Sets whether install logging to $INSTDIR\\install.log will happen. $INSTDIR must have a value before you call this function or it will not work. Note that \e{NSIS_CONFIG_LOG} must be set in the installer configuration (it is not by default) to support this.
+Sets whether install logging to $INSTDIR\\install.log will happen. $INSTDIR must have a value before you call this function or it will not work. Note that \e{NSIS_CONFIG_LOG} must be set in the compile configuration file (config.h) on compile time (it is not by default) to support this. See \R{compiling_infos}{Compiling NSIS Sources} for more information about recompiling NSIS.
 
 \S2{logtext} LogText