diff --git a/code/AssetLib/Q3BSP/Q3BSPFileImporter.cpp b/code/AssetLib/Q3BSP/Q3BSPFileImporter.cpp
index f98d1264a..6c1498892 100644
--- a/code/AssetLib/Q3BSP/Q3BSPFileImporter.cpp
+++ b/code/AssetLib/Q3BSP/Q3BSPFileImporter.cpp
@@ -158,6 +158,9 @@ Q3BSPFileImporter::~Q3BSPFileImporter() {
 // ------------------------------------------------------------------------------------------------
 //  Returns true if the loader can read this.
 bool Q3BSPFileImporter::CanRead(const std::string &/*rFile*/, IOSystem * /*pIOHandler*/, bool /*checkSig*/) const {
+    if (!checkSig) {
+        return SimpleExtensionCheck(rFile, "pk3", "bsp");
+    }
     return false;
 }