diff --git a/app/src/main/assets/logback.xml b/app/src/main/assets/logback.xml
index f6d9d15eae..0e2bf53ac5 100644
--- a/app/src/main/assets/logback.xml
+++ b/app/src/main/assets/logback.xml
@@ -1,11 +1,12 @@
 <configuration>
   <!-- Create a file appender for a log in the application's data directory -->
+  <property name="EXT_FILES_DIR" value="${EXT_DIR:-/sdcard}/Android/data/${PACKAGE_NAME}/files"/>
   <appender name="file" class="ch.qos.logback.core.rolling.RollingFileAppender">
-    <file>/storage/sdcard0/AndroidAPS/AndroidAPS.log</file>
+    <file>${EXT_FILES_DIR}/AndroidAPS.log</file>
 	<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
             <!-- daily rollover. Make sure the path matches the one in the file element or else
              the rollover logs are placed in the working directory. -->
-            <fileNamePattern>/storage/sdcard0/AndroidAPS/AndroidAPS._%d{yyyy-MM-dd}.%i.log</fileNamePattern>
+            <fileNamePattern>${EXT_FILES_DIR}/AndroidAPS._%d{yyyy-MM-dd}.%i.log</fileNamePattern>
 
             <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                 <maxFileSize>5MB</maxFileSize>
@@ -32,4 +33,4 @@
     <appender-ref ref="file" />
 	<appender-ref ref="logcat" />
   </root>
-</configuration>
\ No newline at end of file
+</configuration>