diff --git a/weinre.build/get-vendor.xml b/weinre.build/get-vendor.xml
index 1984cf9..1b72c85 100644
--- a/weinre.build/get-vendor.xml
+++ b/weinre.build/get-vendor.xml
@@ -136,6 +136,8 @@
         <mkdir  dir="${VENDOR}/webkit/WebCore"/>
 
         <exec executable="svn" dir="${VENDOR}/webkit/WebCore">
+            <arg value="--non-interactive"/>
+            <arg value="--trust-server-cert"/>
             <arg value="export"/>
             <arg value="-r"/>
             <arg value="${WEBKIT_VERSION}"/>
@@ -143,6 +145,8 @@
         </exec>
 
         <exec executable="svn" dir="${VENDOR}/webkit/WebCore">
+            <arg value="--non-interactive"/>
+            <arg value="--trust-server-cert"/>
             <arg value="export"/>
             <arg value="-r"/>
             <arg value="${WEBKIT_VERSION}"/>
@@ -150,6 +154,8 @@
         </exec>
 
         <exec executable="svn" dir="${VENDOR}/webkit/WebCore">
+            <arg value="--non-interactive"/>
+            <arg value="--trust-server-cert"/>
             <arg value="export"/>
             <arg value="-r"/>
             <arg value="${WEBKIT_VERSION}"/>