diff --git a/Source/DocMakefile b/Source/DocMakefile
index b42514803..dd8398ced 100644
--- a/Source/DocMakefile
+++ b/Source/DocMakefile
@@ -164,7 +164,6 @@ NSString+GNUstepBase.h \
 NSTask+GNUstepBase.h \
 NSThread+GNUstepBase.h \
 NSURL+GNUstepBase.h \
-behavior.h \
 Unicode.h \
 GCObject.h \