diff --git a/tests/metadata-rewrite-yml/app.with.special.build.params.yml b/tests/metadata-rewrite-yml/app.with.special.build.params.yml
index a8925657..e7755881 100644
--- a/tests/metadata-rewrite-yml/app.with.special.build.params.yml
+++ b/tests/metadata-rewrite-yml/app.with.special.build.params.yml
@@ -38,8 +38,9 @@ Builds:
       - FacebookSDK@sdk-version-3.0.1
     rm:
       - libs/appbrain-sdk-android.jar
-    prebuild: |-
-        sed -i 's@\(reference.1=\).*@\1$$FacebookSDK$$@' project.properties && sed -i 's/Class\[\]/Class\<?\>\[\]/g' $$FacebookSDK$$/src/com/facebook/model/GraphObject.java
+    prebuild:
+      - sed -i 's@\(reference.1=\).*@\1$$FacebookSDK$$@' project.properties
+      - sed -i 's/Class\[\]/Class\<?\>\[\]/g' $$FacebookSDK$$/src/com/facebook/model/GraphObject.java
 
   - versionName: 1.2.2
     versionCode: 42
@@ -52,8 +53,10 @@ Builds:
       - libs/appbrain-sdk-android.jar
     extlibs:
       - android/android-support-v4.jar
-    prebuild: |-
-        mv libs/android-support-v4.jar $$FacebookSDK$$/libs/ && sed -i 's@\(reference.1=\).*@\1$$FacebookSDK$$@' project.properties && sed -i 's/Class\[\]/Class\<?\>\[\]/g'          $$FacebookSDK$$/src/com/facebook/model/GraphObject.java
+    prebuild:
+      - mv libs/android-support-v4.jar $$FacebookSDK$$/libs/
+      - sed -i 's@\(reference.1=\).*@\1$$FacebookSDK$$@' project.properties
+      - sed -i 's/Class\[\]/Class\<?\>\[\]/g'          $$FacebookSDK$$/src/com/facebook/model/GraphObject.java
 
   - versionName: 2.1.1
     versionCode: 48