diff --git a/board/main.c b/board/main.c
index 9b80830..3b53b09 100644
--- a/board/main.c
+++ b/board/main.c
@@ -42,6 +42,7 @@
 
 extern int _app_start[0xc000]; // Only first 3 sectors of size 0x4000 are used
 
+// When changing this struct, boardd and python/__init__.py needs to be kept up to date!
 struct __attribute__((packed)) health_t {
   uint32_t uptime_pkt;
   uint32_t voltage_pkt;
diff --git a/python/__init__.py b/python/__init__.py
index 13d543f..cebd9a5 100644
--- a/python/__init__.py
+++ b/python/__init__.py
@@ -332,8 +332,8 @@ class Panda(object):
   # ******************* health *******************
 
   def health(self):
-    dat = self._handle.controlRead(Panda.REQUEST_IN, 0xd2, 0, 0, 41)
-    a = struct.unpack("IIIIIIIIBBBBBBBBB", dat)
+    dat = self._handle.controlRead(Panda.REQUEST_IN, 0xd2, 0, 0, 43)
+    a = struct.unpack("<IIIIIIIIBBBBBBBHBB", dat)
     return {
       "uptime": a[0],
       "voltage": a[1],
@@ -350,8 +350,9 @@ class Panda(object):
       "car_harness_status": a[12],
       "usb_power_mode": a[13],
       "safety_mode": a[14],
-      "fault_status": a[15],
-      "power_save_enabled": a[16]
+      "safety_param": a[15],
+      "fault_status": a[16],
+      "power_save_enabled": a[17]
     }
 
   # ******************* control *******************