diff --git a/examples/thermal_edge_flow/study10.geo b/examples/thermal_edge_flow/study10.geo
index ddc99a9c690c88a8454f13b0b42fe07c10abb4e1..f7ffbcb5d83115420b66dd2610ced78d88900129 100644
--- a/examples/thermal_edge_flow/study10.geo
+++ b/examples/thermal_edge_flow/study10.geo
@@ -8,7 +8,7 @@ EndIf
 Printf("split=%g", split);
 
 If(!Exists(exp5))
-  exp5
+  exp5 = 8;
 EndIf
 Printf("exp5=%g", exp5);