diff --git a/bramble-android/build.gradle b/bramble-android/build.gradle
index 1ee729973..aa0bb2495 100644
--- a/bramble-android/build.gradle
+++ b/bramble-android/build.gradle
@@ -80,7 +80,7 @@ task cleanJniLibs {
 	inputs.dir jniLibsDir
 	outputs.dir jniLibsDir
 	doLast {
-		delete fileTree(jniLibsDir)
+		delete fileTree(jniLibsDir).filter { it.name.endsWith('.so') }
 	}
 }