diff --git a/storage/src/mozStorageConnection.cpp b/storage/src/mozStorageConnection.cpp
--- a/storage/src/mozStorageConnection.cpp
+++ b/storage/src/mozStorageConnection.cpp
@@ -608,6 +608,12 @@
 Connection::initialize(nsIFile *aDatabaseFile,
                        const char* aVFSName)
 {
+#ifdef SOLARIS
+  if (!aVFSName) {
+    aVFSName = "unix-excl";
+  }
+#endif
+
   NS_ASSERTION (!mDBConn, "Initialize called on already opened database!");
   SAMPLE_LABEL("storage", "Connection::initialize");