diff --git a/xs/src/libslic3r/EdgeGrid.cpp b/xs/src/libslic3r/EdgeGrid.cpp
index 6b3505a29..bc60ff4ad 100644
--- a/xs/src/libslic3r/EdgeGrid.cpp
+++ b/xs/src/libslic3r/EdgeGrid.cpp
@@ -1,5 +1,6 @@
 #include <algorithm>
 #include <vector>
+#include <float.h>
 
 #include <wx/image.h>
 
diff --git a/xs/src/libslic3r/GCode/PressureEqualizer.cpp b/xs/src/libslic3r/GCode/PressureEqualizer.cpp
index b3566ca5f..c20091148 100644
--- a/xs/src/libslic3r/GCode/PressureEqualizer.cpp
+++ b/xs/src/libslic3r/GCode/PressureEqualizer.cpp
@@ -1,5 +1,6 @@
 #include <memory.h>
 #include <string.h>
+#include <float.h>
 
 #include "../libslic3r.h"
 #include "../PrintConfig.hpp"