diff --git a/moose-core/scheduling/Clock.cpp b/moose-core/scheduling/Clock.cpp
index b464b5adc20f7072a352dd20604fd339a283fed2..6d2f3110f876ca56afc8bd9b5e7aa7a3497c32f6 100644
--- a/moose-core/scheduling/Clock.cpp
+++ b/moose-core/scheduling/Clock.cpp
@@ -839,6 +839,7 @@ void Clock::buildDefaultTick()
     defaultTick_["CaConc"] = 1;
     defaultTick_["CaConcBase"] = 1;
     defaultTick_["DifShell"] = 1;
+    defaultTick_["DifBuffer"] = 1;
     defaultTick_["MgBlock"] = 1;
     defaultTick_["Nernst"] = 1;
     defaultTick_["RandSpike"] = 1;