diff --git a/aegisub/config.h b/aegisub/config.h
index 72ba9438c..a687ee086 100644
--- a/aegisub/config.h
+++ b/aegisub/config.h
@@ -10,5 +10,6 @@
 
 // Unix specific settings and defines.
 #include "config/config_unix.h"
+#include "posix/res.h"
 
 #endif // __WINDOWS__
diff --git a/aegisub/config/config_unix.h b/aegisub/config/config_unix.h
index 69a55ff24..ed2a2f0d0 100644
--- a/aegisub/config/config_unix.h
+++ b/aegisub/config/config_unix.h
@@ -24,7 +24,5 @@
 //typedef uint64_t __uint64;
 #define abs64 llabs
 
-#include "res.h"
-
 #endif /* _DEFINES_H */
 
diff --git a/libass/Makefile.am b/libass/Makefile.am
index bb290e5e5..f410e52f9 100644
--- a/libass/Makefile.am
+++ b/libass/Makefile.am
@@ -1,6 +1,6 @@
 noinst_LIBRARIES = libass_aegisub.a
 
-AM_CPPFLAGS = @FREETYPE_CFLAGS@ -DCONFIG_ICONV -DCONFIG_FONTCONFIG @FONTCONFIG_CFLAGS@ @ICONV_CFLAGS@
+AM_CPPFLAGS = -I../aegisub @FREETYPE_CFLAGS@ -DCONFIG_ICONV -DCONFIG_FONTCONFIG @FONTCONFIG_CFLAGS@ @ICONV_CFLAGS@
 
 if BUILD_DARWIN
 AM_CPPFLAGS += -DBUILD_DARWIN