diff --git a/jvector-base/src/main/java/io/github/jbellis/jvector/pq/BQVectors.java b/jvector-base/src/main/java/io/github/jbellis/jvector/pq/BQVectors.java
index bc7748bb0..48255c7bb 100644
--- a/jvector-base/src/main/java/io/github/jbellis/jvector/pq/BQVectors.java
+++ b/jvector-base/src/main/java/io/github/jbellis/jvector/pq/BQVectors.java
@@ -108,6 +108,11 @@ public int getCompressedSize() {
         return compressedVectors[0].length * Long.BYTES;
     }
 
+    @Override
+    public VectorCompressor<long[]> getCompressor() {
+        return bq;
+    }
+
     @Override
     public long ramBytesUsed() {
         return compressedVectors.length * RamUsageEstimator.sizeOf(compressedVectors[0]);
diff --git a/jvector-base/src/main/java/io/github/jbellis/jvector/pq/CompressedVectors.java b/jvector-base/src/main/java/io/github/jbellis/jvector/pq/CompressedVectors.java
index 1b26fa9b5..cdfcf9e86 100644
--- a/jvector-base/src/main/java/io/github/jbellis/jvector/pq/CompressedVectors.java
+++ b/jvector-base/src/main/java/io/github/jbellis/jvector/pq/CompressedVectors.java
@@ -38,4 +38,7 @@ public interface CompressedVectors extends Accountable {
 
     /** @return the compressed size of the vectors, in bytes */
     int getCompressedSize();
+
+    /** @return the compressor used by this instance */
+    VectorCompressor<?> getCompressor();
 }
diff --git a/jvector-base/src/main/java/io/github/jbellis/jvector/pq/PQVectors.java b/jvector-base/src/main/java/io/github/jbellis/jvector/pq/PQVectors.java
index b29f69503..a28a6c66a 100644
--- a/jvector-base/src/main/java/io/github/jbellis/jvector/pq/PQVectors.java
+++ b/jvector-base/src/main/java/io/github/jbellis/jvector/pq/PQVectors.java
@@ -135,6 +135,11 @@ public int getCompressedSize() {
         return pq.codebooks.length;
     }
 
+    @Override
+    public VectorCompressor<byte[]> getCompressor() {
+        return pq;
+    }
+
     @Override
     public long ramBytesUsed() {
         long codebooksSize = pq.memorySize();