diff --git a/internal/nodes/node_status_executor_unix.go b/internal/nodes/node_status_executor_unix.go
index dfd28d6..ecc02cf 100644
--- a/internal/nodes/node_status_executor_unix.go
+++ b/internal/nodes/node_status_executor_unix.go
@@ -40,7 +40,7 @@ func (this *NodeStatusExecutor) updateMem(status *nodeconfigs.NodeStatus) {
 		if minFreeMemory > 1<<30 {
 			minFreeMemory = 1 << 30
 		}
-		if stat.Free < minFreeMemory {
+		if stat.Available > 0 && stat.Available < minFreeMemory {
 			runtime.GC()
 			debug.FreeOSMemory()
 		}