diff --git a/src/modules/resource/acquire.c b/src/modules/resource/acquire.c
index 785c04cd6f46..1642c6027594 100644
--- a/src/modules/resource/acquire.c
+++ b/src/modules/resource/acquire.c
@@ -379,6 +379,7 @@ void acquire_destroy (struct acquire *acquire)
     if (acquire) {
         int saved_errno = errno;
         flux_msg_handler_delvec (acquire->handlers);
+        reslog_set_callback (acquire->ctx->reslog, NULL, NULL);
         if (acquire->request) {
             if (flux_respond_error (acquire->ctx->h,
                                     acquire->request->msg,
diff --git a/src/modules/resource/discover.c b/src/modules/resource/discover.c
index 63bbf636301a..27a56a0662ae 100644
--- a/src/modules/resource/discover.c
+++ b/src/modules/resource/discover.c
@@ -278,6 +278,7 @@ void discover_destroy (struct discover *discover)
 {
     if (discover) {
         int saved_errno = errno;
+        monitor_set_callback (discover->ctx->monitor, NULL, NULL);
         flux_subprocess_destroy (discover->p);
         flux_future_destroy (discover->f);
         flux_msg_handler_delvec (discover->handlers);