diff --git a/APG/android-libs/ActionBarSherlock/build.xml b/APG/android-libs/ActionBarSherlock/build.xml
index 56bc65293..a10a91491 100644
--- a/APG/android-libs/ActionBarSherlock/build.xml
+++ b/APG/android-libs/ActionBarSherlock/build.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project name="ActionBarSherlock" default="help">
+<project name="MainActivity" default="help">
 
     <!-- The local.properties file is created and updated by the 'android' tool.
          It contains the path to the SDK. It should *NOT* be checked into
diff --git a/APG/build.xml b/APG/build.xml
index eb9b68df7..a10a91491 100644
--- a/APG/build.xml
+++ b/APG/build.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project name="APG" default="help">
+<project name="MainActivity" default="help">
 
     <!-- The local.properties file is created and updated by the 'android' tool.
          It contains the path to the SDK. It should *NOT* be checked into
@@ -28,6 +28,15 @@
          -->
     <property file="ant.properties" />
 
+    <!-- if sdk.dir was not set from one of the property file, then
+         get it from the ANDROID_HOME env var.
+         This must be done before we load project.properties since
+         the proguard config can use sdk.dir -->
+    <property environment="env" />
+    <condition property="sdk.dir" value="${env.ANDROID_HOME}">
+        <isset property="env.ANDROID_HOME" />
+    </condition>
+
     <!-- The project.properties file is created and updated by the 'android'
          tool, as well as ADT.
 
@@ -41,7 +50,7 @@
 
     <!-- quick check on sdk.dir -->
     <fail
-            message="sdk.dir is missing. Make sure to generate local.properties using 'android update project' or to inject it through an env var"
+            message="sdk.dir is missing. Make sure to generate local.properties using 'android update project' or to inject it through the ANDROID_HOME environment variable."
             unless="sdk.dir"
     />
 
diff --git a/APG/project.properties b/APG/project.properties
index d39cb7982..63019788e 100644
--- a/APG/project.properties
+++ b/APG/project.properties
@@ -9,4 +9,4 @@
 
 # Project target.
 target=android-15
-android.library.reference.1=../../CryptoCall-UI/CryptoCall-UI/android-libs/ActionBarSherlock
+android.library.reference.1=android-libs/ActionBarSherlock