diff --git a/library/Osmocom_Types.ttcn b/library/Osmocom_Types.ttcn
index 1cba16831..e813a11ce 100644
--- a/library/Osmocom_Types.ttcn
+++ b/library/Osmocom_Types.ttcn
@@ -278,7 +278,7 @@ function f_gen_tmsi(integer suffix, integer nri_v := 0, integer nri_bitlen := 10
 
 	log("f_gen_tmsi(suffix:=", suffix, ", nri_v:=", nri_v, ", nri_bitlen:=", nri_bitlen,
 	    ", base_tmsi:=", base_tmsi, ") -> prefix:=", prefix_bits, ", suffix:=", suffix_bits,
-	    "total_bits:=", total_bits, " == ", tmsi);
+	    ", total_bits:=", total_bits, " == ", tmsi);
 
 	return tmsi;
 }