diff --git a/src/cli/commands/ingest.rs b/src/cli/commands/ingest.rs
index b7e309a..d752e2e 100644
--- a/src/cli/commands/ingest.rs
+++ b/src/cli/commands/ingest.rs
@@ -67,18 +67,26 @@ pub async fn run_ingest(
     // Get projects to sync
     let projects = get_projects_to_sync(&conn, &config.projects, project_filter)?;
 
-    // If --full flag is set, reset sync cursors for a complete re-fetch
+    // If --full flag is set, reset sync cursors and discussion watermarks for a complete re-fetch
     if full {
         println!(
             "{}",
             style("Full sync: resetting cursors to fetch all data...").yellow()
         );
         for (local_project_id, _, path) in &projects {
+            // Reset discussion watermarks first so discussions get re-synced
+            conn.execute(
+                "UPDATE issues SET discussions_synced_for_updated_at = NULL WHERE project_id = ?",
+                [*local_project_id],
+            )?;
+
+            // Then reset sync cursor
             conn.execute(
                 "DELETE FROM sync_cursors WHERE project_id = ? AND resource_type = ?",
                 (*local_project_id, resource_type),
             )?;
-            tracing::info!(project = %path, "Reset sync cursor for full re-fetch");
+
+            tracing::info!(project = %path, "Reset sync cursor and discussion watermarks for full re-fetch");
         }
     }