diff --git a/db/client.cpp b/db/client.cpp
index d85cbc85d36..53c33edde6d 100644
--- a/db/client.cpp
+++ b/db/client.cpp
@@ -246,7 +246,7 @@ namespace mongo {
             }
             else { 
                 assert( x < -1 );
-                uasserted(0, str::stream() << "can't open a database from a nested read lock " << ns);
+                uasserted(15928, str::stream() << "can't open a database from a nested read lock " << ns);
             }
         }
 
diff --git a/db/database.cpp b/db/database.cpp
index 9377e7c6f2d..b9c571925ba 100644
--- a/db/database.cpp
+++ b/db/database.cpp
@@ -417,7 +417,7 @@ namespace mongo {
         log(m.size() > 40 ? 1 : 0) << "Accessing: " << dbname << " for the first time" << endl;
         
         if( !dbMutex.isWriteLocked() ) { 
-            uasserted(0, "can't open database in a read lock. consider retrying the query");
+            uasserted(15927, "can't open database in a read lock. consider retrying the query");
         }
 
         Database *db = new Database( dbname.c_str() , justCreated , path );