diff --git a/include/android/font.h b/include/android/font.h
index 7e5a945..435a573 100644
--- a/include/android/font.h
+++ b/include/android/font.h
@@ -15,6 +15,11 @@
  */
 
 /**
+ * @addtogroup Font
+ * {
+ */
+
+/**
  * @file font.h
  * @brief Provides some constants used in system_fonts.h or fonts_matcher.h
  *
@@ -279,3 +284,5 @@
 __END_DECLS
 
 #endif // ANDROID_FONT_H
+
+/** @} */
diff --git a/include/android/font_matcher.h b/include/android/font_matcher.h
index ad5a4da..e286a4c 100644
--- a/include/android/font_matcher.h
+++ b/include/android/font_matcher.h
@@ -15,6 +15,11 @@
  */
 
 /**
+ * @addtogroup Font
+ * {
+ */
+
+/**
  * @file font_matcher.h
  * @brief Provides the font matching logic with various inputs.
  *
@@ -205,3 +210,5 @@
 __END_DECLS
 
 #endif // ANDROID_FONT_MATCHER_H
+
+/** @} */
diff --git a/include/android/system_fonts.h b/include/android/system_fonts.h
index 3facf82..dde9055 100644
--- a/include/android/system_fonts.h
+++ b/include/android/system_fonts.h
@@ -15,6 +15,11 @@
  */
 
 /**
+ * @addtogroup Font
+ * {
+ */
+
+/**
  * @file system_fonts.h
  * @brief Provides the system font configurations.
  *
@@ -122,3 +127,5 @@
 __END_DECLS
 
 #endif // ANDROID_SYSTEM_FONTS_H
+
+/** @} */