diff --git a/build.sh b/build.sh
index 9a2aaac463093..dd47753730759 100755
--- a/build.sh
+++ b/build.sh
@@ -10,3 +10,4 @@ cd demo/runtime/wasm && ./build.sh && cd ../../..
 cd substrate/executor/wasm && ./build.sh && cd ../../..
 cd substrate/test-runtime/wasm && ./build.sh && cd ../../..
 cd polkadot/runtime/wasm && ./build.sh && cd ../../..
+cd polkadot/parachain/test-chains && ./build.sh && cd ../../..
diff --git a/polkadot/parachain/test-chains/build_test_chains.sh b/polkadot/parachain/test-chains/build.sh
similarity index 100%
rename from polkadot/parachain/test-chains/build_test_chains.sh
rename to polkadot/parachain/test-chains/build.sh
diff --git a/publish-wasm.sh b/publish-wasm.sh
index 7ac79a99bf548..2a42504eef6b9 100755
--- a/publish-wasm.sh
+++ b/publish-wasm.sh
@@ -4,7 +4,7 @@ set -e
 
 REPO="github.com/paritytech/polkadot-wasm-bin.git"
 REPO_AUTH="${GH_TOKEN}:@${REPO}"
-SRCS=( "polkadot/runtime/wasm" "substrate/executor/wasm" "demo/runtime/wasm" "substrate/test-runtime/wasm" )
+SRCS=( "polkadot/runtime/wasm" "substrate/executor/wasm" "demo/runtime/wasm" "substrate/test-runtime/wasm" "polkadot/parachain/test-chains" )
 DST=".wasm-binaries"
 TARGET="wasm32-unknown-unknown"
 UTCDATE=`date -u "+%Y%m%d.%H%M%S.0"`