diff --git a/tools/commit-tests.sh b/tools/commit-tests.sh
index b9fad1a02..40bd81683 100755
--- a/tools/commit-tests.sh
+++ b/tools/commit-tests.sh
@@ -72,7 +72,7 @@ make -j2 gtests ; ./gtests
 
 # OpenTX on Taranis X9E
 rm -rf *
-cmake ${COMMON_OPTIONS} -DPCB=X9E -DHELI=YES -DLUA=YES -DWARNINGS_AS_ERRORS=YES -DPPM_UNIT_PERCENT_PREC1=YES ${SRCDIR}
+cmake ${COMMON_OPTIONS} -DPCB=X9E -DHELI=YES -DLUA=YES -DWARNINGS_AS_ERRORS=YES -DPPM_UNIT=PERCENT_PREC1=YES ${SRCDIR}
 make -j2 firmware
 make -j2 simu
 make -j2 gtests ; ./gtests