diff --git a/README.md b/README.md
index ad31adc..db56b0c 100644
--- a/README.md
+++ b/README.md
@@ -89,6 +89,12 @@ Has classes like:
 
 Depends on Core, Object and Render Core.
 
+### GUI
+
+Contains the Dear ImGui GUI toolkit.
+
+Depends on Core, Object and Render Core.
+
 ## SFWL
 
 The library's lite version.