diff --git a/tools/build-flysky.py b/tools/build-flysky.py
index 17143869a..4c316f3dd 100755
--- a/tools/build-flysky.py
+++ b/tools/build-flysky.py
@@ -53,7 +53,6 @@ common_options = {
     "LUA": "NO",
     "LUA_COMPILER": "NO",
     "DISABLE_COMPANION": "YES",
-    "PPM_UNIT": "PERCENT_PREC1",
     "USB_MSD": "YES",
     "USB_SERIAL": "YES",
     "PCBI6X_ELRS": "YES",
diff --git a/tools/commit-tests.sh b/tools/commit-tests.sh
index dbf0dffe0..7cf2496b2 100755
--- a/tools/commit-tests.sh
+++ b/tools/commit-tests.sh
@@ -126,7 +126,7 @@ fi
 if [[ " X9E X9 ALL " =~ " ${FLAVOR} " ]] ; then
   # OpenTX on Taranis X9E
   rm -rf *
-  cmake ${COMMON_OPTIONS} -DPCB=X9E -DHELI=YES -DLUA=YES -DGVARS=YES -DPPM_UNIT=PERCENT_PREC1 ${SRCDIR}
+  cmake ${COMMON_OPTIONS} -DPCB=X9E -DHELI=YES -DLUA=YES -DGVARS=YES ${SRCDIR}
   make -j${CORES} ${FIRMARE_TARGET}
   make -j${CORES} libsimulator
   make -j${CORES} gtests ; ./gtests ${TEST_OPTIONS}