diff --git a/briar-android/build.gradle b/briar-android/build.gradle
index b1c7e21ad5e7e8e88dd0c3755c2a1e1d54a8bcb3..e3cb1ca4b73da6ff5a01d5dd6c14115e83c92c1d 100644
--- a/briar-android/build.gradle
+++ b/briar-android/build.gradle
@@ -170,7 +170,7 @@ 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()