diff --git a/nomad/structs/funcs.go b/nomad/structs/funcs.go
index 77e1902d0..212453aa3 100644
--- a/nomad/structs/funcs.go
+++ b/nomad/structs/funcs.go
@@ -382,7 +382,7 @@ func DenormalizeAllocationJobs(job *Job, allocs []*Allocation) {
 
 // AllocName returns the name of the allocation given the input.
 func AllocName(job, group string, idx uint) string {
-	return fmt.Sprintf("%s.%s[%d]", job, group, idx)
+	return job + "." + group + "[" + strconv.FormatUint(uint64(idx), 10) + "]"
 }
 
 // AllocSuffix returns the alloc index suffix that was added by the AllocName