diff --git a/cmd/toolsrv/internal/server/proc.go b/cmd/toolsrv/internal/server/proc.go
index 2a463e3..244a62d 100644
--- a/cmd/toolsrv/internal/server/proc.go
+++ b/cmd/toolsrv/internal/server/proc.go
@@ -430,7 +430,7 @@ func (st *State) ListProcsForAgent(agentID string) string {
 		tool := p.Tool
 		cmd := p.Cmd
 		p.mu.Unlock()
-		fmt.Fprintf(&buf, "%d\t%s\t%s\t%s\n", pid, state, tool, cmd)
+		fmt.Fprintf(&buf, "%-6d %-12s %-16s %s\n", pid, state, tool, cmd)
 	}
 	return buf.String()
 }