diff --git a/src/thermo.cpp b/src/thermo.cpp
index a4283eb452..d22b2adb84 100644
--- a/src/thermo.cpp
+++ b/src/thermo.cpp
@@ -224,7 +224,8 @@ void Thermo::init()
   int ivariable;
   for (i = 0; i < nvariable; i++) {
     ivariable = input->variable->find(id_variable[i]);
-    if (ivariable < 0) error->all("Could not find thermo custom variable name");
+    if (ivariable < 0) 
+      error->all("Could not find thermo custom variable name");
     variables[i] = ivariable;
   }