diff --git a/src/position.cpp b/src/position.cpp
index 64b83385..e7a5732b 100644
--- a/src/position.cpp
+++ b/src/position.cpp
@@ -982,7 +982,7 @@ void Position::do_promotion_move(Move m) {
 
   assert(is_ok());
   assert(move_is_ok(m));
-  assert(move_promotion(m));
+  assert(move_is_promotion(m));
 
   us = side_to_move();
   them = opposite_color(us);
@@ -1290,7 +1290,7 @@ void Position::undo_promotion_move(Move m) {
   PieceType promotion;
 
   assert(move_is_ok(m));
-  assert(move_promotion(m));
+  assert(move_is_promotion(m));
 
   // When we have arrived here, some work has already been done by
   // Position::undo_move.  In particular, the side to move has been switched,
diff --git a/src/search.cpp b/src/search.cpp
index 6b6ad248..70bd1eab 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -2278,7 +2278,7 @@ namespace {
 
     assert(move_is_ok(m));
     assert(threat == MOVE_NONE || move_is_ok(threat));
-    assert(!move_promotion(m));
+    assert(!move_is_promotion(m));
     assert(!pos.move_is_check(m));
     assert(!pos.move_is_capture(m));
     assert(!pos.move_is_passed_pawn_push(m));