diff --git a/meta-oe/recipes-devtools/tcltk/tk_9.0.1.bb b/meta-oe/recipes-devtools/tcltk/tk_9.0.1.bb
index 504b40927e..4da4814f29 100644
--- a/meta-oe/recipes-devtools/tcltk/tk_9.0.1.bb
+++ b/meta-oe/recipes-devtools/tcltk/tk_9.0.1.bb
@@ -30,6 +30,7 @@ S = "${UNPACKDIR}/${BPN}${PV}"
 # Short version format: "8.6"
 VER = "${@os.path.splitext(d.getVar('PV'))[0]}"
 
+CFLAGS += "-I${STAGING_INCDIR}/tcl${VER}"
 LDFLAGS += "-Wl,-rpath,${libdir}/tcltk/${PV}/lib"
 
 inherit autotools features_check pkgconfig