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-rw-r--r--module/system/xref.scm2
1 files changed, 1 insertions, 1 deletions
diff --git a/module/system/xref.scm b/module/system/xref.scm
index e71cfe0f0..a8a37e49a 100644
--- a/module/system/xref.scm
+++ b/module/system/xref.scm
@@ -116,7 +116,7 @@
(if (not *callers-db*)
(begin
- (set! db (make-hash-table))
+ (set! db (make-doubly-weak-hash-table))
(visit-module the-root-module)
(set! *callers-db* db)))))