diff --git a/src/g_level.cpp b/src/g_level.cpp
index 313eaf2c1d..3b673ffb44 100644
--- a/src/g_level.cpp
+++ b/src/g_level.cpp
@@ -2065,7 +2065,7 @@ void G_ReadSnapshots(FResourceFile *resf)
 			if (ptr != nullptr)
 			{
 				ptrdiff_t maplen = ptr - resl->FullName.GetChars();
-				FName mapname(resl->FullName.GetChars(), (size_t)maplen);
+				FName mapname(resl->FullName.GetChars(), (size_t)maplen, false);
 				currentSession->Snapshots.Insert(mapname, resl->GetRawData());
 			}
 		}