diff --git a/meta-openembedded/meta-oe/recipes-core/sdbus-c++/sdbus-c++_1.2.0.bb b/meta-openembedded/meta-oe/recipes-core/sdbus-c++/sdbus-c++_1.2.0.bb
index 75cd815..2fb975c 100644
--- a/meta-openembedded/meta-oe/recipes-core/sdbus-c++/sdbus-c++_1.2.0.bb
+++ b/meta-openembedded/meta-oe/recipes-core/sdbus-c++/sdbus-c++_1.2.0.bb
@@ -42,3 +42,6 @@
 PTEST_PATH = "${libdir}/${BPN}/tests"
 FILES:${PN}-ptest =+ "${sysconfdir}/dbus-1/system.d/"
 FILES:${PN}-dev += "${bindir}/sdbus-c++-xml2cpp"
+
+# It adds -isystem which is spurious, no idea where it gets it from
+CCACHE_DISABLE = "1"