diff --git a/aegisub/Makefile.am b/aegisub/Makefile.am
index 6156e3788..3eeb472ef 100644
--- a/aegisub/Makefile.am
+++ b/aegisub/Makefile.am
@@ -13,7 +13,7 @@ DARCSREV := $(strip $(shell head -n 1 ../_darcs/inventory 2>/dev/null))
 REVISION := $(if $(SVNREV),-DBUILD_SVN_REVISION=$(SVNREV)) $(if $(DARCSREV),-DBUILD_DARCS)
 BUILDINFO := -DBUILD_CREDIT="\"$(shell whoami)\"" $(REVISION)
 
-AM_CPPFLAGS = -DAEGISUB -Iposix -include posix/defines.h $(BUILDINFO)
+AM_CPPFLAGS = -DAEGISUB -Iposix -include posix/defines.h -include posix/config.h $(BUILDINFO)
 aegisub_LDADD = posix/libposix.a ../csri/lib/.libs/libcsri.a
 aegisub_LDFLAGS = 
 
diff --git a/aegisub/win32/config0.h b/aegisub/win32/config0.h
index 1c7711105..3776ff22b 100644
--- a/aegisub/win32/config0.h
+++ b/aegisub/win32/config0.h
@@ -38,7 +38,9 @@
 
 
 // Build credit: Set this to a string with your name as you want it to appear on the program
+#ifndef BUILD_CREDIT
 #define BUILD_CREDIT "Anonymous"
+#endif
 
 
 ////////////// HIGH PRIORITY /////////////