diff --git a/base/timer.cpp b/base/timer.cpp
index 1a93925b88..afc92bd0ea 100644
--- a/base/timer.cpp
+++ b/base/timer.cpp
@@ -4,7 +4,8 @@
 
 #include "../std/target_os.hpp"
 #include "../std/systime.hpp"
-
+#include "../std/cstdio.hpp"
+#include "../std/memcpy.hpp"
 
 namespace my
 {
diff --git a/graphics/opengl/shader.cpp b/graphics/opengl/shader.cpp
index c54a019432..52e78ff259 100644
--- a/graphics/opengl/shader.cpp
+++ b/graphics/opengl/shader.cpp
@@ -3,6 +3,9 @@
 #include "defines_conv.hpp"
 #include "opengl.hpp"
 
+// For strlen
+#include "../../std/memcpy.hpp"
+
 namespace graphics
 {
   namespace gl