diff --git a/project.properties b/project.properties
index 0b9250e021cfaac0bcbf8575a75aab1ec81008f8..a3dd3eb9193d089eee1bb3bf0e20656b0422a4b8 100644
--- a/project.properties
+++ b/project.properties
@@ -8,4 +8,5 @@
 # project structure.
 
 # Project target.
-target=android-8
+target=android-18
+android.library.reference.2=../../../android/adt-bundle-linux-x86_64/sdk/extras/android/support/v7/appcompat
diff --git a/routerjars/project.properties b/routerjars/project.properties
index c006f0a1c8529cdaafd39511688e95094a9f0f4e..63ee6e27a4c728d758ce7e6f04a75efcf2e35132 100644
--- a/routerjars/project.properties
+++ b/routerjars/project.properties
@@ -8,5 +8,5 @@
 # project structure.
 
 # Project target.
-target=android-8
+target=android-18
 android.library=true