diff --git a/src/DimensionTraits.h b/src/DimensionTraits.h
index fe188f2b3..bf15751a8 100644
--- a/src/DimensionTraits.h
+++ b/src/DimensionTraits.h
@@ -15,6 +15,7 @@
     GNU Lesser General Public License version 3 for more details.
 */
 
+#include <cstddef>
 #include <cstdint>
 
 /** @file
diff --git a/src/Magnum.h b/src/Magnum.h
index 9300082ee..a98ebbee0 100644
--- a/src/Magnum.h
+++ b/src/Magnum.h
@@ -19,6 +19,7 @@
  * @brief Basic definitions
  */
 
+#include "magnumCompatibility.h"
 #include "magnumConfigure.h"
 
 #ifndef MAGNUM_TARGET_GLES
diff --git a/src/Math/Math.h b/src/Math/Math.h
index 014f895ff..a3dc2d04d 100644
--- a/src/Math/Math.h
+++ b/src/Math/Math.h
@@ -16,6 +16,7 @@
 */
 
 #include <cmath>
+#include <cstdint>
 #include <type_traits>
 #include <limits>
 #include <algorithm>
diff --git a/src/Math/MathTypeTraits.h b/src/Math/MathTypeTraits.h
index 6799989da..742b728ac 100644
--- a/src/Math/MathTypeTraits.h
+++ b/src/Math/MathTypeTraits.h
@@ -19,6 +19,7 @@
  * @brief Class Magnum::Math::MathTypeTraits
  */
 
+#include <cstddef>
 #include <cstdint>
 #include <cmath>