diff --git a/Primitive-Data-Types.md b/Primitive-Data-Types.md
index fdad398..7699789 100644
--- a/Primitive-Data-Types.md
+++ b/Primitive-Data-Types.md
@@ -62,6 +62,7 @@
 ### Usage Example
 ```cpp
 #include <ehs/EHS.h>
+#include <ehs/Types.h>
 #include <ehs/io/Console.h>
 
 int main()