diff --git a/examples/PACKAGES/electrode/graph-il/in.conp b/examples/PACKAGES/electrode/graph-il/in.conp
index 3bb4954c00..ec26b1637f 100644
--- a/examples/PACKAGES/electrode/graph-il/in.conp
+++ b/examples/PACKAGES/electrode/graph-il/in.conp
@@ -5,7 +5,7 @@ boundary p p f # slab calculation
 include settings.mod # styles, groups, computes and fixes
 kspace_modify slab 3.0
 
-fix conp bot electrode/conp -1.0 1.979 couple top 1.0 symm on algo mat_inv
+fix conp bot electrode/conp -1.0 1.979 couple top 1.0 symm on #algo mat_inv
 
 thermo 50
 thermo_style custom step temp c_ctemp epair etotal c_qbot c_qtop