diff --git a/changes/ticket31451 b/changes/ticket31451
new file mode 100644
index 0000000000..773d665957
--- /dev/null
+++ b/changes/ticket31451
@@ -0,0 +1,4 @@
+  o Minor bugfixes (logging):
+    - Fix a code issue that would have broken our parsing of log
+      domains as soon as we had 33 of them.  Fortunately, we still
+      only have 29.  Fixes bug 31451; bugfix on 0.4.1.4-rc.
diff --git a/src/lib/log/log.c b/src/lib/log/log.c
index d95bf1ff6e..56f016eae4 100644
--- a/src/lib/log/log.c
+++ b/src/lib/log/log.c
@@ -1285,7 +1285,7 @@ parse_log_domain(const char *domain)
   int i;
   for (i=0; domain_list[i]; ++i) {
     if (!strcasecmp(domain, domain_list[i]))
-      return (1u<<i);
+      return (UINT64_C(1)<<i);
   }
   return 0;
 }