tutorial/deterministic_inversion_input.md

@@ -26,7 +26,7 @@ For inverse simulations, the SHEMAT-Suite [input file](./input_file) has to be a
   20.3  0.5  50  1  20  2  1
  !<value> <error> <i-index> <j-index> <k-index> <variable-flag> <flag>
 ```
-The variable-flag defines for which variable the measured value is given: 1=head, 2=temperature. 
+The variable-flag defines for which variable the measured value is given: 1=head, 2=temperature, 3=concentration. 
 
 **3. Specify inversion options**