diff --git a/tests/bin/spinit b/tests/bin/spinit
index 3be28d032..110920f46 100644
--- a/tests/bin/spinit
+++ b/tests/bin/spinit
@@ -2,3 +2,4 @@
 *  this environment variable must be lower-case
 
 set sourcepath = ( $ngspice_vpath . )
+set stepsizelimit