diff --git a/meta-openembedded/meta-networking/recipes-irc/znc/znc_git.bb b/meta-openembedded/meta-networking/recipes-irc/znc/znc_git.bb
index 8c6979c..728ef87 100644
--- a/meta-openembedded/meta-networking/recipes-irc/znc/znc_git.bb
+++ b/meta-openembedded/meta-networking/recipes-irc/znc/znc_git.bb
@@ -30,5 +30,5 @@
 }
 
 do_install_append() {
-    sed -i 's/-fdebug-prefix-map[^ ]*//g; s#${STAGING_DIR_TARGET}##g' ${D}${libdir}/pkgconfig/*.pc
+    sed -i -e 's|${DEBUG_PREFIX_MAP}||g; s|--sysroot=${STAGING_DIR_TARGET}||g' ${D}${libdir}/pkgconfig/*.pc
 }