diff --git a/src/engine/guidance/lane_processing.cpp b/src/engine/guidance/lane_processing.cpp
index b84113bf0..d7a2b0f0b 100644
--- a/src/engine/guidance/lane_processing.cpp
+++ b/src/engine/guidance/lane_processing.cpp
@@ -64,7 +64,6 @@ std::vector<RouteStep> anticipateLaneChange(std::vector<RouteStep> steps)
             const auto current_lanes = current.maneuver.lanes;
 
             // Constrain the previous turn's lanes
-            auto &previous_inst = previous.maneuver.instruction;
             auto &previous_lanes = previous.maneuver.lanes;
             // Lane mapping (N:M) from previous lanes (N) to current lanes (M), with:
             //  N > M, N > 1   fan-in situation, constrain N lanes to min(N,M) shared lanes
diff --git a/src/engine/guidance/post_processing.cpp b/src/engine/guidance/post_processing.cpp
index 0aebefc8b..745443d94 100644
--- a/src/engine/guidance/post_processing.cpp
+++ b/src/engine/guidance/post_processing.cpp
@@ -1082,7 +1082,7 @@ std::vector<RouteStep> buildIntersections(std::vector<RouteStep> steps)
             // previous instruction.
             if (instruction.type == TurnType::EndOfRoad)
             {
-                BOOST_ASSERT(step_index > 0 && step_index < step_index + 1 < steps.size());
+                BOOST_ASSERT(step_index > 0 && step_index + 1 < steps.size());
                 const auto &previous_step = steps[last_valid_instruction];
                 if (previous_step.intersections.size() < MIN_END_OF_ROAD_INTERSECTIONS)
                     step.maneuver.instruction.type = TurnType::Turn;