diff --git a/examples/p-to-n-examples/.spiceinit b/examples/p-to-n-examples/.spiceinit
index b78bb0201..aeee13ea7 100644
--- a/examples/p-to-n-examples/.spiceinit
+++ b/examples/p-to-n-examples/.spiceinit
@@ -1 +1 @@
-set ngbehavior=psa
+set ngbehavior=ltpsa
diff --git a/examples/p-to-n-examples/555-timer-2.cir b/examples/p-to-n-examples/555-timer-2.cir
index e17c43862..c34619948 100644
--- a/examples/p-to-n-examples/555-timer-2.cir
+++ b/examples/p-to-n-examples/555-timer-2.cir
@@ -63,7 +63,7 @@
     * applications, up to 100Hz.
     .INCLUDE TLC555.LIB
     .TRAN 10u 100MS
-    .OPTIONS RELTOL=.0001
+*    .OPTIONS RELTOL=.0001 chgtol=1e-11
     .SAVE  v(16) v(13) v(17)
     .SAVE  v(1) v(4) v(3)