diff --git a/src/constraints/conversion_2_with_partial_cargo_operations.mod b/src/constraints/conversion_2_with_partial_cargo_operations.mod
index 42d749d9f3aae1d145e5d7cce47fc8705d22b99d..3497ee68eb0d39c9d03bab807ba8df87ccdb6456 100644
--- a/src/constraints/conversion_2_with_partial_cargo_operations.mod
+++ b/src/constraints/conversion_2_with_partial_cargo_operations.mod
@@ -436,7 +436,7 @@ subject to {
                 forall (op in 1..n_operations, t in 0..(n_intervals + 1) : (is_moving_operation[op] == 0)) (
                     (cargo_op_intensity[op, t] > 0) => (op_status[op, t] == 1)
                 );
-                forall (op in 1..n_operations, t in 0..(n_intervals + 1) : (is_moving_operation[op] == 0)) (
+                forall (op in 1..n_operations, t in 0..(n_intervals + 1) : (is_moving_operation[op] == 1)) (
                     cargo_op_intensity[op, t] == 0
                 );
                 forall (op in 1..n_operations, t in 0..(n_intervals + 1) : (is_moving_operation[op] == 0)) (