diff --git a/netwerk/protocol/about/src/nsAboutCacheEntry.cpp b/netwerk/protocol/about/src/nsAboutCacheEntry.cpp
index aacf7ca06e88..b0c987bc69b8 100644
--- a/netwerk/protocol/about/src/nsAboutCacheEntry.cpp
+++ b/netwerk/protocol/about/src/nsAboutCacheEntry.cpp
@@ -401,7 +401,7 @@ nsAboutCacheEntry::WriteCacheEntryUnavailable(nsIOutputStream *outputStream,
 {
     PRUint32 n;
     nsCAutoString buffer;
-    buffer.Assign("The cache entry you selected is no longer unavailable.");
+    buffer.Assign("The cache entry you selected is no longer available.");
     outputStream->Write(buffer, buffer.Length(), &n);
     return NS_OK;
 }