diff --git a/src/common/fs_zip.cpp b/src/common/fs_zip.cpp
index 3a4f8deab6..036c001abd 100644
--- a/src/common/fs_zip.cpp
+++ b/src/common/fs_zip.cpp
@@ -67,7 +67,8 @@ wxZipFSHandler::~wxZipFSHandler()
 bool wxZipFSHandler::CanOpen(const wxString& location)
 {
     wxString p = GetProtocol(location);
-    return (p == wxT("zip"));
+    return (p == wxT("zip")) && 
+           (GetProtocol(GetLeftLocation(location)) == wxT("file"));
 }