diff --git a/src/llama-impl.h b/src/llama-impl.h
index cd4e0730..a223ce28 100644
--- a/src/llama-impl.h
+++ b/src/llama-impl.h
@@ -15,6 +15,7 @@
 #include <vector>
 #include <cinttypes>
 #include <cstring>
+#include <string>
 
 #ifdef __GNUC__
 #ifdef __MINGW32__