diff --git a/meta-ampere/meta-common/recipes-phosphor/chassis/obmc-phosphor-buttons_%.bbappend b/meta-ampere/meta-common/recipes-phosphor/chassis/obmc-phosphor-buttons_%.bbappend
index 42ae8fa..b2ce6ef 100644
--- a/meta-ampere/meta-common/recipes-phosphor/chassis/obmc-phosphor-buttons_%.bbappend
+++ b/meta-ampere/meta-common/recipes-phosphor/chassis/obmc-phosphor-buttons_%.bbappend
@@ -1 +1 @@
-EXTRA_OECMAKE += "-DLONG_PRESS_TIME_MS=5000"
+EXTRA_OEMESON:append = "-Dlong-press-time-ms=5000"
diff --git a/meta-phosphor/recipes-phosphor/chassis/obmc-phosphor-buttons_git.bb b/meta-phosphor/recipes-phosphor/chassis/obmc-phosphor-buttons_git.bb
index 74eddc0..82e4d23 100644
--- a/meta-phosphor/recipes-phosphor/chassis/obmc-phosphor-buttons_git.bb
+++ b/meta-phosphor/recipes-phosphor/chassis/obmc-phosphor-buttons_git.bb
@@ -7,9 +7,9 @@
 
 S = "${WORKDIR}/git"
 SRC_URI += "git://github.com/openbmc/phosphor-buttons.git;branch=master;protocol=https"
-SRCREV = "1efa3e2969262594457441acc612216dd1e2e7e7"
+SRCREV = "ba33275d9fbf89bdaa75c241b87b5520bb54c440"
 
-inherit cmake pkgconfig systemd
+inherit meson pkgconfig systemd
 
 BUTTON_PACKAGES="${PN}-signals ${PN}-handler"