diff --git a/src/oceanic_atom2_parser.c b/src/oceanic_atom2_parser.c
index 5dc3488..fe6ed85 100644
--- a/src/oceanic_atom2_parser.c
+++ b/src/oceanic_atom2_parser.c
@@ -246,6 +246,8 @@ oceanic_atom2_parser_get_datetime (dc_parser_t *abstract, dc_datetime_t *datetim
 		case T3B:
 		case GEO20:
 		case PROPLUS3:
+		case DATAMASK:
+		case COMPUMASK:
 			datetime->year   = ((p[3] & 0xE0) >> 1) + (p[4] & 0x0F) + 2000;
 			datetime->month  = (p[4] & 0xF0) >> 4;
 			datetime->day    = p[3] & 0x1F;