diff --git a/BloomFilter.h b/BloomFilter.h
index 1c451454..2745fbf5 100644
--- a/BloomFilter.h
+++ b/BloomFilter.h
@@ -13,11 +13,11 @@ namespace util
 	{
 
 		/** @brief destructor */
-		virtual ~IBloomFilter();
+		virtual ~IBloomFilter() {};
 		/** @brief add entry to bloom filter, return false if filter hit otherwise return true */
 		virtual bool Add(const uint8_t * data, std::size_t len) = 0;
 		/** @brief optionally decay old entries */
-		virtual void Decay();
+		virtual void Decay() = 0;
 	};
 
 	typedef std::shared_ptr<IBloomFilter> BloomFilterPtr;
diff --git a/android/jni/Android.mk b/android/jni/Android.mk
index cc070984..c44594f0 100755
--- a/android/jni/Android.mk
+++ b/android/jni/Android.mk
@@ -59,7 +59,7 @@ LOCAL_SRC_FILES := DaemonAndroid.cpp i2pd_android.cpp \
     ../../TunnelPool.cpp \
 	../../Timestamp.cpp \
 	../../Event.cpp \
-	../../BloomFiler.cpp \
+	../../BloomFilter.cpp \
     ../../util.cpp \
      ../../i2pd.cpp ../../UPnP.cpp