diff --git a/src/build/libbe/storage/mime/UpdateMimeInfoThread.cpp b/src/build/libbe/storage/mime/UpdateMimeInfoThread.cpp
index d399787de8..f6550eca85 100644
--- a/src/build/libbe/storage/mime/UpdateMimeInfoThread.cpp
+++ b/src/build/libbe/storage/mime/UpdateMimeInfoThread.cpp
@@ -269,9 +269,6 @@ UpdateMimeInfoThread::DoMimeUpdate(const entry_ref *entry, bool *entryIsDir)
 		if (err != B_OK)
 			return err;
 
-/*		TODO: figure out why this doesn't compile here
-			when the same code works in src/servers/registrar/mime
-
 		// catalog entry
 		char catalogEntry[B_MIME_TYPE_LENGTH * 3];
 		err = appFileInfoRead.GetCatalogEntry(catalogEntry);
@@ -281,7 +278,7 @@ UpdateMimeInfoThread::DoMimeUpdate(const entry_ref *entry, bool *entryIsDir)
 			err = appFileInfoWrite.SetCatalogEntry(NULL);
 		if (err != B_OK)
 			return err;
-*/
+
 		// app flags
 		uint32 appFlags;
 		err = appFileInfoRead.GetAppFlags(&appFlags);
diff --git a/src/tools/Jamfile b/src/tools/Jamfile
index 0f889ae425..376563e117 100644
--- a/src/tools/Jamfile
+++ b/src/tools/Jamfile
@@ -58,15 +58,32 @@ BuildPlatformMain <build>listattr : listattr.cpp : $(HOST_LIBBE) ;
 if $(HOST_PLATFORM_BEOS_COMPATIBLE) {
 	AddResources <build>mimeset : mimeset.rdef ;
 }
-BuildPlatformMain <build>mimeset :
+
+local mimesetSources =
 	mimeset.cpp
 	Mime.cpp
 	database_support.cpp
 	UpdateMimeInfoThread.cpp
 	MimeUpdateThread.cpp
+;
+
+if $(HOST_PLATFORM) = haiku_host {
+	mimesetSources += AppFileInfo.cpp ;
+}
+
+BuildPlatformMain <build>mimeset :
+	$(mimesetSources)
 	: $(HOST_LIBBE) $(HOST_LIBSTDC++) $(HOST_LIBSUPC++) $(libHaikuCompat)
 ;
 
+if $(HOST_PLATFORM_BEOS_COMPATIBLE) {
+	SEARCH on [ FGristFiles AppFileInfo.cpp ]
+		= [ FDirName $(HAIKU_TOP) src build libbe storage ] ;
+
+	SourceSysHdrs AppFileInfo.cpp UpdateMimeInfoThread.cpp
+		: [ FDirName  $(HAIKU_TOP) headers build os storage ] ;
+}
+
 BuildPlatformMain <build>mkindex : mkindex.cpp : $(HOST_LIBBE) ;
 
 # We want rm_attrs to be self-contained, so we link against the static libroot.