diff --git a/Userland/Libraries/LibPDF/Value.h b/Userland/Libraries/LibPDF/Value.h
index 06c4888c0d..a8e8cd735e 100644
--- a/Userland/Libraries/LibPDF/Value.h
+++ b/Userland/Libraries/LibPDF/Value.h
@@ -8,6 +8,8 @@
 
 #include <AK/Format.h>
 #include <AK/RefPtr.h>
+#include <AK/String.h>
+#include <LibPDF/Forward.h>
 
 namespace PDF {