diff --git a/aegisub/subtitle_format.cpp b/aegisub/subtitle_format.cpp
index 8d0b028bd..5ad448ea9 100644
--- a/aegisub/subtitle_format.cpp
+++ b/aegisub/subtitle_format.cpp
@@ -41,9 +41,9 @@
 #include "subtitle_format_ass.h"
 #include "subtitle_format_srt.h"
 #include "subtitle_format_txt.h"
-#if USE_PRS == 1
-#include "subtitle_format_prs.h"
-#endif
+//#if USE_PRS == 1
+//#include "subtitle_format_prs.h"
+//#endif
 #include "subtitle_format_mkv.h"
 #include "ass_file.h"
 
@@ -128,9 +128,9 @@ void SubtitleFormat::LoadFormats () {
 		new SRTSubtitleFormat();
 		new TXTSubtitleFormat();
 		new MKVSubtitleFormat();
-#if USE_PRS == 1
-		new PRSSubtitleFormat();
-#endif
+//#if USE_PRS == 1
+//		new PRSSubtitleFormat();
+//#endif
 	}
 	loaded = true;
 }