diff --git a/library/src/com/anjlab/android/iab/v3/BillingCache.java b/library/src/com/anjlab/android/iab/v3/BillingCache.java
index dbf6291b..74c23684 100644
--- a/library/src/com/anjlab/android/iab/v3/BillingCache.java
+++ b/library/src/com/anjlab/android/iab/v3/BillingCache.java
@@ -53,8 +53,11 @@ private void load() {
 		for (String entry : loadString(getPreferencesCacheKey(), "").split(Pattern.quote(ENTRY_DELIMITER))) {
 			if (!TextUtils.isEmpty(entry)) {
 				String[] parts = entry.split(Pattern.quote(LINE_DELIMITER));
-				if (parts.length > 2)
+				if (parts.length > 2) {
 					data.put(parts[0], new PurchaseInfo(parts[1], parts[2]));
+				} else if (parts.length > 1) {
+					data.put(parts[0], new PurchaseInfo(parts[1], null));
+				}
 			}
 		}
 		version = getCurrentVersion();
diff --git a/library/src/com/anjlab/android/iab/v3/Constants.java b/library/src/com/anjlab/android/iab/v3/Constants.java
index f5d1b041..adf7f60a 100644
--- a/library/src/com/anjlab/android/iab/v3/Constants.java
+++ b/library/src/com/anjlab/android/iab/v3/Constants.java
@@ -33,11 +33,11 @@ class Constants {
 	public static final String RESPONSE_CODE = "RESPONSE_CODE";
 	public static final String DETAILS_LIST = "DETAILS_LIST";
     public static final String PRODUCTS_LIST = "ITEM_ID_LIST";
-	public static final String INAPP_PURCHASE_DATA_LIST = "INAPP_PURCHASE_DATA_LIST";
-	public static final String INAPP_DATA_SIGNATURE_LIST = "INAPP_DATA_SIGNATURE_LIST";
 	public static final String BUY_INTENT = "BUY_INTENT";
+	public static final String INAPP_PURCHASE_DATA_LIST = "INAPP_PURCHASE_DATA_LIST";
 	public static final String INAPP_PURCHASE_DATA = "INAPP_PURCHASE_DATA";
     public static final String RESPONSE_INAPP_SIGNATURE = "INAPP_DATA_SIGNATURE";
+	public static final String INAPP_DATA_SIGNATURE_LIST = "INAPP_DATA_SIGNATURE_LIST";
     public static final String RESPONSE_ORDER_ID = "orderId";
     public static final String RESPONSE_PRODUCT_ID = "productId";
     public static final String RESPONSE_TYPE = "type";