diff --git a/src/interval.h b/src/interval.h
index d45c84c..cd4e0de 100644
--- a/src/interval.h
+++ b/src/interval.h
@@ -17,8 +17,8 @@ protected:
     uint8_t _mode; // mode of actual operation (compatibility, oneshot, periodic)
     uint8_t _done;
 public:
-    Interval(): _mode(0), _done(0xff), _timefrom(0), _timeout(0) {} // compatibility mode autostart
-    Interval(uint32_t tmout): _timeout(tmout), _mode(2), _done(0xff), _timefrom(0) {} // periodic mode autostart
+    Interval():_timefrom(0), _timeout(0), _mode(0), _done(0xff) {} // compatibility mode autostart
+    Interval(uint32_t tmout): _timefrom(0), _timeout(tmout), _mode(2), _done(0xff) {} // periodic mode autostart
     bool expired(void);
     void set(uint32_t tmout);
     void setOneshot(uint32_t tmout);