diff --git a/examples/features/path_integral_molecular_dynamics/pimd+mts_liquid_water/input.xml b/examples/features/path_integral_molecular_dynamics/pimd+mts_liquid_water/input.xml
index 53ee12af4..51eebb8bc 100644
--- a/examples/features/path_integral_molecular_dynamics/pimd+mts_liquid_water/input.xml
+++ b/examples/features/path_integral_molecular_dynamics/pimd+mts_liquid_water/input.xml
@@ -5,7 +5,7 @@
     <properties stride='10' filename='pot_lr-raw'>  [ pot_component_raw(1;0), pot_component_raw(1;1) ] </properties>
     <trajectory filename='pos' stride='10'> positions </trajectory>
     <trajectory filename='f_sr_c' stride='10'> forces_component_raw(0) </trajectory>
-    <trajectory filename='f_lr-raw' stride='10'> forces_component_raw(0,0) </trajectory>
+    <trajectory filename='f_lr-raw' stride='10'> forces_component_raw(0;0) </trajectory>
     <checkpoint stride='200'/>
   </output>
   <total_steps>100</total_steps>