diff --git a/Headers/gnustep/base/preface.h.in b/Headers/gnustep/base/preface.h.in
index 0bbd1f108..da7cbc03b 100644
--- a/Headers/gnustep/base/preface.h.in
+++ b/Headers/gnustep/base/preface.h.in
@@ -28,6 +28,7 @@
 #include <stdlib.h>
 #include <stdarg.h>
 #include <objects/objc-gnu2next.h>
+#include <objects/LibobjectsMain.h>
 
 #if NeXT_runtime
  #include <objc/objc.h>
diff --git a/Headers/gnustep/base/stdobjects.h.in b/Headers/gnustep/base/stdobjects.h.in
index 0bbd1f108..da7cbc03b 100644
--- a/Headers/gnustep/base/stdobjects.h.in
+++ b/Headers/gnustep/base/stdobjects.h.in
@@ -28,6 +28,7 @@
 #include <stdlib.h>
 #include <stdarg.h>
 #include <objects/objc-gnu2next.h>
+#include <objects/LibobjectsMain.h>
 
 #if NeXT_runtime
  #include <objc/objc.h>
diff --git a/Source/objects/stdobjects.h.in b/Source/objects/stdobjects.h.in
index 0bbd1f108..da7cbc03b 100644
--- a/Source/objects/stdobjects.h.in
+++ b/Source/objects/stdobjects.h.in
@@ -28,6 +28,7 @@
 #include <stdlib.h>
 #include <stdarg.h>
 #include <objects/objc-gnu2next.h>
+#include <objects/LibobjectsMain.h>
 
 #if NeXT_runtime
  #include <objc/objc.h>