diff --git a/random/rndlinux.c b/random/rndlinux.c
index d3a144a4..b4bdc466 100644
--- a/random/rndlinux.c
+++ b/random/rndlinux.c
@@ -158,6 +158,11 @@ _gcry_rndlinux_gather_random (void (*add)(const void*, size_t,
   if (length > 1)
     length -= n_hw;
 
+  // Enforce the use of /dev/urandom for testing of the libgcrypt-based
+  // Web Crypto implementation testing in WebKit.
+  // DO NOT USE THIS PATCH OUTSIDE OF TESTING ENVIRONMENTS.
+  level = 0;
+
   /* Open the requested device.  The first time a device is to be
      opened we fail with a fatal error if the device does not exists.
      In case the device has ever been closed, further open requests