diff --git a/src/renderer/shader.cpp b/src/renderer/shader.cpp
index 4bbacbf68..311e46e4b 100644
--- a/src/renderer/shader.cpp
+++ b/src/renderer/shader.cpp
@@ -3,6 +3,7 @@
 
 #include <cstdlib>
 #include <cstdio>
+#include <cstring>
 
 using namespace llmr;