diff --git a/testdata/grepinput b/testdata/grepinput
index 91d3db887..1a0a9c0f3 100644
--- a/testdata/grepinput
+++ b/testdata/grepinput
@@ -630,7 +630,7 @@ asd
 dfg
 ghj
 jkl
-abc
+abx
 def
 ghi
 xyz
diff --git a/testdata/grepoutput b/testdata/grepoutput
index 58ea858d4..abfabe15e 100644
--- a/testdata/grepoutput
+++ b/testdata/grepoutput
@@ -104,7 +104,6 @@ pcre2grep: Error in command-line regex at offset 4: quantifier does not follow a
 RC=2
 ---------------------------- Test 16 -----------------------------
 pcre2grep: Failed to open ./testdata/nonexistfile: No such file or directory
-./testdata/grepinput:abc
 RC=2
 ---------------------------- Test 17 -----------------------------
 features should be added at the end, because some of the tests involve the
@@ -1306,7 +1305,7 @@ RC=0
 630-dfg
 631-ghj
 632:jkl
-633-abc
+633-abx
 634-def
 635-ghi
 RC=0