diff --git a/src/app/service-graph/services/graph.store.ts b/src/app/service-graph/services/graph.store.ts
index 54bc083..9ab1a5d 100644
--- a/src/app/service-graph/services/graph.store.ts
+++ b/src/app/service-graph/services/graph.store.ts
@@ -106,6 +106,7 @@
     this.graphData
       .subscribe(
         (res: IXosFineGrainedGraphData) => {
+          this.$log.debug(`[XosServiceGraphStore] New graph data received`, res);
           this.graphDataToCoarseGraph(res);
           this.graphDataToFineGrainedGraph(res);
         },