diff --git a/src/system/ddt.68 b/src/system/ddt.69
similarity index 99%
rename from src/system/ddt.68
rename to src/system/ddt.69
index 3d2ccf5e..be2bb4e1 100755
--- a/src/system/ddt.68
+++ b/src/system/ddt.69
@@ -1289,7 +1289,14 @@ POW2:	LSH W2,-1
 	JUMPE W2,L4
 	SOJA W1,POW2
 
-PERIOD:	MOVE T,LLOC
+GETPC:	SKIPN T,ALTPC
+	 JRST [HRRZ T,BCOM ? SOS T ? JRST .+1]
+	AOS (P)
+	POPJ P,
+
+PERIOD:	TLNE F,CF
+	 PUSHJ P,GETPC
+	  MOVE T,LLOC
 	TLNE F,SF	;SYLLABLE STARTED
 	MOVE T,DEN
 	MOVEM T,SYL