diff --git a/src/slic3r/GUI/EncodedFilament.hpp b/src/slic3r/GUI/EncodedFilament.hpp
index 9423f6bfe1..f949f3b3bd 100644
--- a/src/slic3r/GUI/EncodedFilament.hpp
+++ b/src/slic3r/GUI/EncodedFilament.hpp
@@ -3,9 +3,9 @@
 
 #include <vector>
 #include <map>
+#include <math.h>
 #include <unordered_map>
 #include <unordered_set>
-#include <cmath>
 
 #include <wx/colour.h>
 #include <wx/string.h>