diff --git a/src/input/readers/SQLite.cc b/src/input/readers/SQLite.cc
index eec3698540..f97b2cea13 100644
--- a/src/input/readers/SQLite.cc
+++ b/src/input/readers/SQLite.cc
@@ -306,7 +306,7 @@ bool SQLite::DoUpdate()
 			ofields[j] = EntryToVal(st, fields[j], mapping[j], submapping[j]);
 			if ( ofields[j] == 0 )
 				{
-				for ( int k = 0; k < j; ++k )
+				for ( unsigned int k = 0; k < j; ++k )
 					delete ofields[k];
 
 				delete [] ofields;
diff --git a/src/probabilistic/BitVector.cc b/src/probabilistic/BitVector.cc
index 257fc9ad71..79b403960e 100644
--- a/src/probabilistic/BitVector.cc
+++ b/src/probabilistic/BitVector.cc
@@ -495,6 +495,7 @@ BitVector::size_type BitVector::FindNext(size_type i) const
 uint64 BitVector::Hash() const
 	{
 	u_char buf[SHA256_DIGEST_LENGTH];
+	uint64 digest;
 	SHA256_CTX ctx;
 	sha256_init(&ctx);
 
@@ -502,7 +503,8 @@ uint64 BitVector::Hash() const
 		sha256_update(&ctx, &bits[i], sizeof(bits[i]));
 
 	sha256_final(&ctx, buf);
-	return *reinterpret_cast<uint64*>(buf); // Use the first bytes as digest.
+	memcpy(&digest, buf, sizeof(digest)); // Use the first bytes as digest
+	return digest;
 	}
 
 BitVector::size_type BitVector::lowest_bit(block_type block)
diff --git a/src/probabilistic/Hasher.cc b/src/probabilistic/Hasher.cc
index b497dba9be..1f5f0910ba 100644
--- a/src/probabilistic/Hasher.cc
+++ b/src/probabilistic/Hasher.cc
@@ -13,6 +13,7 @@ using namespace probabilistic;
 uint64 Hasher::MakeSeed(const void* data, size_t size)
 	{
 	u_char buf[SHA256_DIGEST_LENGTH];
+	uint64 tmpseed;
 	SHA256_CTX ctx;
 	sha256_init(&ctx);
 
@@ -29,7 +30,8 @@ uint64 Hasher::MakeSeed(const void* data, size_t size)
 		}
 
 	sha256_final(&ctx, buf);
-	return *reinterpret_cast<uint64*>(buf); // Use the first bytes as seed.
+	memcpy(&tmpseed, buf, sizeof(tmpseed)); // Use the first bytes as seed.
+	return tmpseed;
 	}
 
 Hasher::digest_vector Hasher::Hash(const HashKey* key) const