--- orbit-2.14.19-r3.ebuild
+++ orbit-2.14.19-r3.ebuild
@@ -66,8 +66,8 @@
 	# We need to use the hosts IDL compiler if cross-compiling, bug #262741
 	if tc-is-cross-compiler; then
 		# check that host version is present and executable
-		[ -x /usr/bin/orbit-idl-2 ] || die "Please emerge ~${CATEGORY}/${P} on the host system first"
-		G2CONF="${G2CONF} --with-idl-compiler=/usr/bin/orbit-idl-2"
+		[ -x "${EPREFIX}"/usr/bin/orbit-idl-2 ] || die "Please emerge ~${CATEGORY}/${P} on the host system first"
+		G2CONF="${G2CONF} --with-idl-compiler=${EPREFIX}/usr/bin/orbit-idl-2"
 	fi
 	gnome2_src_configure \
 		$(use_enable pic libname-server-pic) \