diff --git a/pidog/pidog.py b/pidog/pidog.py
index c5d44da..5b70fce 100644
--- a/pidog/pidog.py
+++ b/pidog/pidog.py
@@ -120,7 +120,7 @@ class Pidog():
     HEAD_YAW_MAX = 90
     HEAD_ROLL_MIN = -70
     HEAD_ROLL_MAX = 70
-    HEAD_PITCH_MIN = -45
+    HEAD_PITCH_MIN = -90
     HEAD_PITCH_MAX = 30
 
     # init