diff --git a/media-sound/alsamixergui/alsamixergui-0.9.0.1.2-r4.ebuild b/media-sound/alsamixergui/alsamixergui-0.9.0.1.2-r4.ebuild
index c24b9a4741db9..d3d7099d11c07 100644
--- a/media-sound/alsamixergui/alsamixergui-0.9.0.1.2-r4.ebuild
+++ b/media-sound/alsamixergui/alsamixergui-0.9.0.1.2-r4.ebuild
@@ -36,7 +36,7 @@ src_prepare() {
 
 src_configure() {
 	append-ldflags "-L$(dirname $(fltk-config --libs))"
-	append-flags "-I/usr/include/fltk"
+	append-flags "-I$(fltk-config --includedir)"
 	econf
 }