diff --git a/src/libslic3r/ParameterUtils.cpp b/src/libslic3r/ParameterUtils.cpp
index 4e5fed7e6..8254346c5 100644
--- a/src/libslic3r/ParameterUtils.cpp
+++ b/src/libslic3r/ParameterUtils.cpp
@@ -1,5 +1,7 @@
 #include "ParameterUtils.hpp"
 
+#include <cassert>
+
 namespace Slic3r {
 
 std::vector<LayerPrintSequence> get_other_layers_print_sequence(int sequence_nums, const std::vector<int> &sequence)