diff --git a/app-doc/doxygen/doxygen-9999.ebuild b/app-doc/doxygen/doxygen-9999.ebuild
index 9f082f097a2ad..4baf172148217 100644
--- a/app-doc/doxygen/doxygen-9999.ebuild
+++ b/app-doc/doxygen/doxygen-9999.ebuild
@@ -104,6 +104,9 @@ src_configure() {
 		-Dbuild_wizard=$(usex qt5)
 		-Duse_sqlite3=$(usex sqlite)
 		)
+	use doc && mycmakeargs+=(
+		-DDOC_INSTALL_DIR="share/doc/${P}"
+		)
 
 	cmake-utils_src_configure
 }