1 files changed, 1 insertions, 1 deletions

diff --git a/firmware/Makefile b/firmware/Makefile
index e4f2fb3d1917..9fe86041f86e 100644
--- a/firmware/Makefile
+++ b/firmware/Makefile
@@ -56,7 +56,7 @@ fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_USA28X) += keyspan/usa28x.fw
 fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_USA49W) += keyspan/usa49w.fw
 fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_USA49WLC) += keyspan/usa49wlc.fw
 else
-fw-shipped- := keyspan/mpr.fw keyspan/usa18x.fw keyspan/usa19.fw        \
+fw-shipped- += keyspan/mpr.fw keyspan/usa18x.fw keyspan/usa19.fw        \
         keyspan/usa19qi.fw keyspan/usa19qw.fw keyspan/usa19w.fw         \
         keyspan/usa28.fw keyspan/usa28xa.fw keyspan/usa28xb.fw          \
         keyspan/usa28x.fw keyspan/usa49w.fw keyspan/usa49wlc.fw