diff --git a/meta-oe/recipes-devtools/tcltk/tk_8.6.10.bb b/meta-oe/recipes-devtools/tcltk/tk_8.6.10.bb
index f3cab4e610..237c4e7389 100644
--- a/meta-oe/recipes-devtools/tcltk/tk_8.6.10.bb
+++ b/meta-oe/recipes-devtools/tcltk/tk_8.6.10.bb
@@ -28,6 +28,8 @@ SRC_URI[sha256sum] = "63df418a859d0a463347f95ded5cd88a3dd3aaa1ceecaeee362194bc30
 
 S = "${WORKDIR}/${BPN}${PV}/unix"
 
+DEBUG_PREFIX_MAP += "-fdebug-prefix-map=${S}/../=${TARGET_DBGSRC_DIR}/.."
+
 PSEUDO_IGNORE_PATHS .= ",${WORKDIR}/${BPN}${PV}"
 
 # Short version format: "8.6"