diff --git a/doc/gmqcc.1 b/doc/gmqcc.1
index c825a41..758e08d 100644
--- a/doc/gmqcc.1
+++ b/doc/gmqcc.1
@@ -336,6 +336,8 @@ When compiling original QuakeWorld QC there are instances where
 code overwrites constants. This is considered an error, however
 for QuakeWorld to compile it needs to be treated as a warning
 instead, as such this warning only works when -std=qcc.
+.It Fl W Ns Cm directive-inmacro
+Warn about the use of preprocessor directives inside macros.
 .El
 .Sh COMPILE FLAGS
 .Bl -tag -width Ds
diff --git a/gmqcc.ini.example b/gmqcc.ini.example
index 474fe3c..acff3b3 100644
--- a/gmqcc.ini.example
+++ b/gmqcc.ini.example
@@ -532,6 +532,11 @@
     CONST_OVERWRITE = true
 
 
+    #Warn about the use of preprocessor directives inside macros.
+
+    DIRECTIVE_INMACRO = true
+
+
 
 [optimizations]
     #Some general peephole optimizations. For instance the code `a = b