diff --git a/src/snmalloc/ds/ds.h b/src/snmalloc/ds/ds.h
index a26eb20de..29e38aba8 100644
--- a/src/snmalloc/ds/ds.h
+++ b/src/snmalloc/ds/ds.h
@@ -11,4 +11,3 @@
 #include "flaglock.h"
 #include "mpmcstack.h"
 #include "pagemap.h"
-#include "singleton.h"
diff --git a/src/snmalloc/ds_core/ds_core.h b/src/snmalloc/ds_core/ds_core.h
index 2083190bc..34f689cad 100644
--- a/src/snmalloc/ds_core/ds_core.h
+++ b/src/snmalloc/ds_core/ds_core.h
@@ -15,3 +15,4 @@
 #include "ptrwrap.h"
 #include "redblacktree.h"
 #include "seqset.h"
+#include "singleton.h"
\ No newline at end of file
diff --git a/src/snmalloc/ds/singleton.h b/src/snmalloc/ds_core/singleton.h
similarity index 100%
rename from src/snmalloc/ds/singleton.h
rename to src/snmalloc/ds_core/singleton.h