diff --git a/src/sound/i_soundfont.cpp b/src/sound/i_soundfont.cpp
index 4bb6eeeef..4a073bc5e 100644
--- a/src/sound/i_soundfont.cpp
+++ b/src/sound/i_soundfont.cpp
@@ -107,7 +107,7 @@ int FSoundFontReader::pathcmp(const char *p1, const char *p2)
 
 FSF2Reader::FSF2Reader(const char *fn)
 {
-	mMainConfigForSF2.Format("soundfont %s\n", fn);
+	mMainConfigForSF2.Format("soundfont \"%s\"\n", fn);
 	mFilename = fn;
 }