diff --git a/src/evdev.c b/src/evdev.c
index e4e6d72..eb76cc4 100644
--- a/src/evdev.c
+++ b/src/evdev.c
@@ -696,7 +696,7 @@ static void
 EvdevProcessSyncEvent(InputInfoPtr pInfo, struct input_event *ev)
 {
     int num_v = 0, first_v = 0;
-    int v[MAX_VALUATORS];
+    int v[MAX_VALUATORS] = {}; /* initialize with zeros */
     EvdevPtr pEvdev = pInfo->private;
 
     EvdevProcessValuators(pInfo, v, &num_v, &first_v);