diff --git a/build-constraints.yaml b/build-constraints.yaml
index 9ac9a6cb..b4067180 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1786,7 +1786,7 @@ packages:
         - type-spec
         - pretty-types
         - mediabus
-        - mediabus-fdk-aac
+        #- mediabus-fdk-aac # needs non-free libfdk-aac-dev
         - mediabus-rtp
 
     # "Will Thompson <will@willthompson.co.uk> @wjt":
diff --git a/debian-bootstrap.sh b/debian-bootstrap.sh
index b149c584..4de888b5 100755
--- a/debian-bootstrap.sh
+++ b/debian-bootstrap.sh
@@ -183,7 +183,7 @@ wget -O - http://apt.llvm.org/llvm-snapshot.gpg.key | apt-key add - \
     && apt-get update \
     && apt-get install -y llvm-4.0
 
-# non-free repo
-apt-add-repository multiverse \
-    && apt-get update \
-    && apt-get install -y libfdk-aac-dev
+## non-free repo for mediabus-fdk-aac
+#apt-add-repository multiverse \
+#    && apt-get update \
+#    && apt-get install -y libfdk-aac-dev