diff --git a/src/probabilistic/BitVector.cc b/src/probabilistic/BitVector.cc
index 78c0407727..257fc9ad71 100644
--- a/src/probabilistic/BitVector.cc
+++ b/src/probabilistic/BitVector.cc
@@ -492,7 +492,7 @@ BitVector::size_type BitVector::FindNext(size_type i) const
 	return block ? bi * bits_per_block + lowest_bit(block) : find_from(bi + 1);
 	}
 
-uint64_t BitVector::Hash() const
+uint64 BitVector::Hash() const
 	{
 	u_char buf[SHA256_DIGEST_LENGTH];
 	SHA256_CTX ctx;
@@ -502,7 +502,7 @@ uint64_t BitVector::Hash() const
 		sha256_update(&ctx, &bits[i], sizeof(bits[i]));
 
 	sha256_final(&ctx, buf);
-	return *reinterpret_cast<uint64_t*>(buf); // Use the first bytes as seed.
+	return *reinterpret_cast<uint64*>(buf); // Use the first bytes as digest.
 	}
 
 BitVector::size_type BitVector::lowest_bit(block_type block)
diff --git a/src/probabilistic/BitVector.h b/src/probabilistic/BitVector.h
index 6ca0cd506a..a1ff0c9ad9 100644
--- a/src/probabilistic/BitVector.h
+++ b/src/probabilistic/BitVector.h
@@ -15,7 +15,7 @@ namespace probabilistic {
  */
 class BitVector : public SerialObj {
 public:
-	typedef uint64_t block_type;
+	typedef uint64 block_type;
 	typedef size_t size_type;
 	typedef bool const_reference;
 
@@ -281,7 +281,7 @@ public:
 	  *
 	  * @return The hash.
 	  */
-	uint64_t Hash() const;
+	uint64 Hash() const;
 
 	/**
 	 * Serializes the bit vector.
diff --git a/src/probabilistic/CounterVector.cc b/src/probabilistic/CounterVector.cc
index c1eea18d96..317a28d851 100644
--- a/src/probabilistic/CounterVector.cc
+++ b/src/probabilistic/CounterVector.cc
@@ -153,7 +153,7 @@ CounterVector operator|(const CounterVector& x, const CounterVector& y)
 
 }
 
-uint64_t CounterVector::Hash() const
+uint64 CounterVector::Hash() const
 	{
 	return bits->Hash();
 	}
diff --git a/src/probabilistic/CounterVector.h b/src/probabilistic/CounterVector.h
index 1748feb17b..d3efd1aa31 100644
--- a/src/probabilistic/CounterVector.h
+++ b/src/probabilistic/CounterVector.h
@@ -131,7 +131,7 @@ public:
 	  *
 	  * @return The hash.
 	  */
-	uint64_t Hash() const;
+	uint64 Hash() const;
 
 	/**
 	 * Serializes the bit vector.
diff --git a/src/probabilistic/Hasher.cc b/src/probabilistic/Hasher.cc
index 3e42ef95ce..b497dba9be 100644
--- a/src/probabilistic/Hasher.cc
+++ b/src/probabilistic/Hasher.cc
@@ -10,7 +10,7 @@
 
 using namespace probabilistic;
 
-uint64_t Hasher::MakeSeed(const void* data, size_t size)
+uint64 Hasher::MakeSeed(const void* data, size_t size)
 	{
 	u_char buf[SHA256_DIGEST_LENGTH];
 	SHA256_CTX ctx;
@@ -29,7 +29,7 @@ uint64_t Hasher::MakeSeed(const void* data, size_t size)
 		}
 
 	sha256_final(&ctx, buf);
-	return *reinterpret_cast<uint64_t*>(buf); // Use the first bytes as seed.
+	return *reinterpret_cast<uint64*>(buf); // Use the first bytes as seed.
 	}
 
 Hasher::digest_vector Hasher::Hash(const HashKey* key) const
diff --git a/src/probabilistic/Hasher.h b/src/probabilistic/Hasher.h
index c82858ded1..6128f3e04e 100644
--- a/src/probabilistic/Hasher.h
+++ b/src/probabilistic/Hasher.h
@@ -30,7 +30,7 @@ public:
 	 *
 	 * @return A seed suitable for hashers.
 	 */
-	static uint64_t MakeSeed(const void* data, size_t size);
+	static uint64 MakeSeed(const void* data, size_t size);
 
 	/**
 	 * Destructor.