diff --git a/app/src/main/java/com/geeksville/mesh/model/DeviceVersion.kt b/app/src/main/java/com/geeksville/mesh/model/DeviceVersion.kt
index e2096f2bf..d23574f48 100644
--- a/app/src/main/java/com/geeksville/mesh/model/DeviceVersion.kt
+++ b/app/src/main/java/com/geeksville/mesh/model/DeviceVersion.kt
@@ -27,7 +27,7 @@ data class DeviceVersion(val asString: String) : Comparable<DeviceVersion>, Logg
             Regex("(\\d{1,2}).(\\d{1,2}).(\\d{1,2})").find(s)
                 ?: throw Exception("Can't parse version $s")
         val (major, minor, build) = match.destructured
-        return major.toInt() * 1000 + minor.toInt() * 100 + build.toInt()
+        return major.toInt() * 10000 + minor.toInt() * 100 + build.toInt()
     }
 
     override fun compareTo(other: DeviceVersion): Int = asInt - other.asInt
diff --git a/app/src/test/java/com/geeksville/mesh/model/DeviceVersionTest.kt b/app/src/test/java/com/geeksville/mesh/model/DeviceVersionTest.kt
new file mode 100644
index 000000000..68434593e
--- /dev/null
+++ b/app/src/test/java/com/geeksville/mesh/model/DeviceVersionTest.kt
@@ -0,0 +1,17 @@
+package com.geeksville.mesh.model
+
+import android.net.Uri
+import org.junit.Assert.*
+import org.junit.Test
+
+class DeviceVersionTest {
+    /** make sure we match the python and device code behavior */
+    @Test
+    fun canParse() {
+
+        assertEquals(10000, DeviceVersion("1.0.0").asInt)
+        assertEquals(10101, DeviceVersion("1.1.1").asInt)
+        assertEquals(12357, DeviceVersion("1.23.57").asInt)
+        assertEquals(12357, DeviceVersion("1.23.57.abde123").asInt)
+    }
+}
\ No newline at end of file