diff --git a/library/L1CTL_PortType.ttcn b/library/L1CTL_PortType.ttcn
index 94f807a..7d69b46 100644
--- a/library/L1CTL_PortType.ttcn
+++ b/library/L1CTL_PortType.ttcn
@@ -90,12 +90,12 @@
 		T.start
 		pt.send(ts_L1CTL_RACH_REQ(ra, combined, offset, chan_nr, link_id))
 		alt {
-			[] pt.receive(tr_L1CTL_RACH_CONF) -> value rc { fn := rc.dl_info.frame_nr };
-			[] pt.receive { repeat; };
-			[] T.timeout {
-				setverdict(fail, "Timeout waiting for L1CTL_RACH_CONF");
-				mtc.stop;
-				}
+		[] pt.receive(tr_L1CTL_RACH_CONF) -> value rc { fn := rc.dl_info.frame_nr };
+		[] pt.receive { repeat; };
+		[] T.timeout {
+			setverdict(fail, "Timeout waiting for L1CTL_RACH_CONF");
+			mtc.stop;
+			}
 		}
 		return fn;
 	}
@@ -111,12 +111,12 @@
 		T.start;
 		pt.send(ts_L1CTL_EXT_RACH_REQ(ra11, seq, combined, offset));
 		alt {
-			[] pt.receive(tr_L1CTL_RACH_CONF) -> value rc { fn := rc.dl_info.frame_nr };
-			[] pt.receive { repeat; };
-			[] T.timeout {
-				setverdict(fail, "Timeout waiting for (extended) L1CTL_RACH_CONF");
-				mtc.stop;
-				}
+		[] pt.receive(tr_L1CTL_RACH_CONF) -> value rc { fn := rc.dl_info.frame_nr };
+		[] pt.receive { repeat; };
+		[] T.timeout {
+			setverdict(fail, "Timeout waiting for (extended) L1CTL_RACH_CONF");
+			mtc.stop;
+			}
 		}
 
 		return fn;
@@ -140,20 +140,20 @@
 
 		T.start;
 		alt {
-			[] pt.receive(tr_L1CTL_DATA_IND(t_RslChanNr_PCH_AGCH(0))) -> value dl {
-				rr := dec_GsmRrMessage(dl.payload.data_ind.payload);
-				log("PCH/AGCH DL RR: ", rr);
-				if (match(rr, rr_imm_ass)) {
-					log("Received IMM.ASS for our RACH!");
-				} else {
-					repeat;
-				}
-			};
-			[] pt.receive { repeat };
-			[] T.timeout {
-				setverdict(fail, "Timeout waiting for IMM ASS");
-				mtc.stop;
-				}
+		[] pt.receive(tr_L1CTL_DATA_IND(t_RslChanNr_PCH_AGCH(0))) -> value dl {
+			rr := dec_GsmRrMessage(dl.payload.data_ind.payload);
+			log("PCH/AGCH DL RR: ", rr);
+			if (match(rr, rr_imm_ass)) {
+				log("Received IMM.ASS for our RACH!");
+			} else {
+				repeat;
+			}
+		};
+		[] pt.receive { repeat };
+		[] T.timeout {
+			setverdict(fail, "Timeout waiting for IMM ASS");
+			mtc.stop;
+			}
 		}
 		T.stop;
 		return rr.payload.imm_ass;
@@ -167,21 +167,21 @@
 		timer T := 10.0;
 		T.start;
 		alt {
-			[] pt.receive(tr_L1CTL_DATA_IND(t_RslChanNr_PCH_AGCH(0))) -> value dl {
-				/* TODO: use decmatch tr_IaRestOctets_DLAss(...) instead */
-				rr := dec_GsmRrMessage(dl.payload.data_ind.payload);
-				log("PCH/AGCN DL RR: ", rr);
-				if (match(rr, tr_IMM_TBF_ASS(dl := true, rest := rest))) {
-					log("Received IMM.ASS for our TLLI!");
-				} else {
-					repeat;
-				}
-			};
-			[] pt.receive { repeat };
-			[] T.timeout {
-				setverdict(fail, "Timeout waiting for TBF IMM ASS");
-				mtc.stop;
-				}
+		[] pt.receive(tr_L1CTL_DATA_IND(t_RslChanNr_PCH_AGCH(0))) -> value dl {
+			/* TODO: use decmatch tr_IaRestOctets_DLAss(...) instead */
+			rr := dec_GsmRrMessage(dl.payload.data_ind.payload);
+			log("PCH/AGCN DL RR: ", rr);
+			if (match(rr, tr_IMM_TBF_ASS(dl := true, rest := rest))) {
+				log("Received IMM.ASS for our TLLI!");
+			} else {
+				repeat;
+			}
+		};
+		[] pt.receive { repeat };
+		[] T.timeout {
+			setverdict(fail, "Timeout waiting for TBF IMM ASS");
+			mtc.stop;
+			}
 		}
 		T.stop;
 		return rr.payload.imm_ass;
@@ -192,12 +192,12 @@
 		T.start;
 		pt.send(ts_L1CTL_TBF_CFG_REQ(is_uplink, tfi_usf));
 		alt {
-			[] pt.receive(tr_L1CTL_TBF_CFG_CONF(is_uplink)) {}
-			[] pt.receive { repeat };
-			[] T.timeout {
-				setverdict(fail, "Timeout waiting for L1CTL_TBF_CFG_CONF");
-				mtc.stop;
-				};
+		[] pt.receive(tr_L1CTL_TBF_CFG_CONF(is_uplink)) {}
+		[] pt.receive { repeat };
+		[] T.timeout {
+			setverdict(fail, "Timeout waiting for L1CTL_TBF_CFG_CONF");
+			mtc.stop;
+			};
 		}
 		T.stop;
 	}
@@ -236,12 +236,12 @@
 		pt.send(t_L1ctlResetReq(res_type));
 		T.start;
 		alt {
-			[] pt.receive(tr_L1CTL_MsgType(L1CTL_RESET_CONF)) { }
-			[] pt.receive { repeat; }
-			[] T.timeout {
-				setverdict(fail, "Timeout waiting for L1CTL_RESET_CONF");
-				mtc.stop;
-				}
+		[] pt.receive(tr_L1CTL_MsgType(L1CTL_RESET_CONF)) { }
+		[] pt.receive { repeat; }
+		[] T.timeout {
+			setverdict(fail, "Timeout waiting for L1CTL_RESET_CONF");
+			mtc.stop;
+			}
 		}
 	}