diff --git a/aegisub/subtitles_provider_libass.cpp b/aegisub/subtitles_provider_libass.cpp
index d0b9234fc..d3a52434f 100644
--- a/aegisub/subtitles_provider_libass.cpp
+++ b/aegisub/subtitles_provider_libass.cpp
@@ -148,4 +148,10 @@ void LibassSubtitlesProvider::DrawSubtitles(AegiVideoFrame &frame,double time) {
 	}
 }
 
+
+//////////
+// Static
+ass_library_t* LibassSubtitlesProvider::ass_library;
+
+
 #endif // WITH_LIBASS
diff --git a/aegisub/subtitles_provider_libass.h b/aegisub/subtitles_provider_libass.h
index adff2e08c..fc2c6e5f4 100644
--- a/aegisub/subtitles_provider_libass.h
+++ b/aegisub/subtitles_provider_libass.h
@@ -65,8 +65,6 @@ public:
 	void DrawSubtitles(AegiVideoFrame &dst,double time);
 };
 
-ass_library_t* LibassSubtitlesProvider::ass_library;
-
 
 ///////////
 // Factory