diff --git a/CHANGES.txt b/CHANGES.txt
index 09f3d96c06..671be30550 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,4 +1,5 @@
 5.0-beta1
+ * SAI indexes are marked queryable during truncation (CASSANDRA-19032)
  * Enable Direct-IO feature for CommitLog files using Java native API's. (CASSANDRA-18464)
  * SAI fixes for composite partitions, and static and non-static rows intersections (CASSANDRA-19034)
  * Improve SAI IndexContext handling of indexed and non-indexed columns in queries (CASSANDRA-18166)
diff --git a/src/java/org/apache/cassandra/index/sai/StorageAttachedIndex.java b/src/java/org/apache/cassandra/index/sai/StorageAttachedIndex.java
index 4304a3edfe..49d93bd643 100644
--- a/src/java/org/apache/cassandra/index/sai/StorageAttachedIndex.java
+++ b/src/java/org/apache/cassandra/index/sai/StorageAttachedIndex.java
@@ -390,10 +390,15 @@ public class StorageAttachedIndex implements Index
     public Callable<?> getTruncateTask(long truncatedAt)
     {
         /*
-         * index files will be removed as part of base sstable lifecycle in
-         * {@link LogTransaction#delete(java.io.File)} asynchronously.
+         * index files will be removed as part of base sstable lifecycle in {@link LogTransaction#delete(java.io.File)}
+         * asynchronously, but we need to mark the index queryable because if the truncation is during the initial
+         * build of the index it won't get marked queryable by the build.
          */
-        return null;
+        return () -> {
+            logger.info(indexIdentifier.logMessage("Making index queryable during table truncation"));
+            baseCfs.indexManager.makeIndexQueryable(this, Status.BUILD_SUCCEEDED);
+            return null;
+        };
     }
 
     @Override