diff --git a/package_versions.txt b/package_versions.txt
index a271cab..5623dee 100755
--- a/package_versions.txt
+++ b/package_versions.txt
@@ -17,6 +17,7 @@ fftw-3.3.8-r0
 fftw-double-libs-3.3.8-r0
 fftw-long-double-libs-3.3.8-r0
 fftw-single-libs-3.3.8-r0
+flac-1.3.3-r0
 fontconfig-2.13.1-r2
 freetype-2.10.4-r0
 fribidi-1.0.9-r0