diff --git a/src/pxb/android/StringItems.java b/src/pxb/android/StringItems.java
index edf026a..abdb849 100644
--- a/src/pxb/android/StringItems.java
+++ b/src/pxb/android/StringItems.java
@@ -87,7 +87,7 @@ public int getSize() {
 
 	public void prepare() throws IOException {
 		for (StringItem s : this) {
-			if (s.data.length() > 0x7FFF) {
+			if (s.data != null && s.data.length() > 0x7FFF) {
 				useUTF8 = false;
 			}
 		}