diff --git a/core/Scanline.cpp b/core/Scanline.cpp
index 8e5352d..7407be4 100644
--- a/core/Scanline.cpp
+++ b/core/Scanline.cpp
@@ -1,7 +1,7 @@
 
 #include "Scanline.h"
 
-#include <algorithm>
+#include <cstdlib>
 #include "arithmetics.hpp"
 
 namespace msdfgen {
diff --git a/core/Shape.cpp b/core/Shape.cpp
index 5b2d0f6..53c4409 100644
--- a/core/Shape.cpp
+++ b/core/Shape.cpp
@@ -1,7 +1,7 @@
 
 #include "Shape.h"
 
-#include <algorithm>
+#include <cstdlib>
 #include "arithmetics.hpp"
 
 namespace msdfgen {
diff --git a/core/edge-coloring.cpp b/core/edge-coloring.cpp
index 873efd0..f3c7335 100644
--- a/core/edge-coloring.cpp
+++ b/core/edge-coloring.cpp
@@ -1,6 +1,7 @@
 
 #include "edge-coloring.h"
 
+#include <cstdlib>
 #include <cmath>
 #include <cstring>
 #include <cfloat>