diff --git a/icu4c/source/test/testdata/numberformattestspecification.txt b/icu4c/source/test/testdata/numberformattestspecification.txt
index e152c57501..8e6d1f6ffe 100644
--- a/icu4c/source/test/testdata/numberformattestspecification.txt
+++ b/icu4c/source/test/testdata/numberformattestspecification.txt
@@ -14,9 +14,9 @@ test plus sign
 set locale ar
 set pattern +0;-#
 begin
-format	output
-6	\u200F+\u0666
--6	\u200F-\u0666
+format	output	breaks
+6	\u200F+\u0666	JK
+-6	\u200F-\u0666	JK
 
 test basic patterns
 set locale fr_FR
@@ -1103,6 +1103,6 @@ set roundingMode ceiling
 set minFractionDigits 0
 set maxFractionDigits 0
 begin
-format	output
--0.99	-0
+format	output	breaks
+-0.99	-0	JK