diff --git a/crowsnest b/crowsnest
index b5ff9c4..95d6bc3 100755
--- a/crowsnest
+++ b/crowsnest
@@ -65,6 +65,7 @@ done
 init_logging
 initial_check
 v4l2_control
+blockyfix
 construct_streamer
 brokenfocus
 
diff --git a/libs/messages.sh b/libs/messages.sh
index caa2bc4..ebfb99e 100755
--- a/libs/messages.sh
+++ b/libs/messages.sh
@@ -68,3 +68,8 @@ function detected_broken_dev_msg {
 function debug_focus_val_msg {
     log_msg "DEBUG: Value is now: ${1}"
 }
+
+## blockyfix
+function blockyfix_msg_1 {
+    log_msg "INFO: Blockyfix: Setting video_bitrate_mode to constant."
+}
diff --git a/libs/v4l2_control.sh b/libs/v4l2_control.sh
index 12091f2..9bcec71 100755
--- a/libs/v4l2_control.sh
+++ b/libs/v4l2_control.sh
@@ -133,3 +133,30 @@ function brokenfocus {
 main
 
 }
+
+# This function is to set bitrate on raspicams.
+# If raspicams set to variable bitrate, they tend to show
+# a "block-like" view after reboots
+# To prevent that blockyfix should apply constant bitrate befor start of ustreamer
+# See https://github.com/mainsail-crew/crowsnest/issues/33
+function blockyfix {
+    local dev v4l2ctl
+
+    # call set_bitrate <device>
+    function set_bitrate {
+        v4l2-ctl -d "${1}" -c video_bitrate_mode=1 2> /dev/null
+        v4l2-ctl -d "${1}" -c video_bitrate=15000000 2> /dev/null
+    }
+
+    for cam in $(configured_cams); do
+        dev="$(get_param "cam ${cam}" device)"
+        v4l2ctl="$(get_param "cam ${cam}" v4l2ctl)"
+        if [ "${dev}" = "$(dev_is_raspicam)" ]; then
+            if [ -z "${v4l2ctl}" ] ||
+            [ "$(grep -c "video_bitrate" <<< "${v4l2ctl}")" == "0" ]; then
+                set_bitrate "${dev}"
+                blockyfix_msg_1
+            fi
+        fi
+    done
+}