diff --git a/briar-android/build.gradle b/briar-android/build.gradle
index d9e6559b44a9125ac2c1a8ecb7586595f4c0be62..adfbdaa3bf8c5fa329d5c35579b2c9da4ea6ab78 100644
--- a/briar-android/build.gradle
+++ b/briar-android/build.gradle
@@ -169,7 +169,7 @@ def getGitHash = { ->
 	def stdout = new ByteArrayOutputStream()
 	try {
 		exec {
-			commandLine 'git', 'rev-parse', '--short', 'HEAD'
+			commandLine 'git', 'rev-parse', '--short=7', 'HEAD'
 			standardOutput = stdout
 		}
 		return stdout.toString().trim()