diff --git a/prebuilt/common/bin/otasigcheck.sh b/prebuilt/common/bin/otasigcheck.sh
index ff75623..5131be3 100644
--- a/prebuilt/common/bin/otasigcheck.sh
+++ b/prebuilt/common/bin/otasigcheck.sh
@@ -3,6 +3,12 @@
 # Validate that the incoming OTA is compatible with an already-installed
 # system
 
+grep -q "Command:.*\"--wipe\_data\"" /tmp/recovery.log
+if [ $? -eq 0 ]; then
+  echo "Data will be wiped after install; skipping signature check..."
+  exit 0
+fi
+
 if [ -f /data/system/packages.xml -a -f /tmp/releasekey ]; then
   relCert=$(grep -A3 'package name="com.android.htmlviewer"' /data/system/packages.xml  | grep "cert index" | head -n 1 | sed -e 's|.*"\([[:digit:]][[:digit:]]*\)".*|\1|g')