diff --git a/ChangeLog b/ChangeLog
index 613f7bd..0be4ada 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2019-01-20  Ben Elliston  <bje@gnu.org>
+
+	* testsuite/config-guess.sh (run_config_guess): For clarity, write
+	uname replacement to './uname', not 'uname'.
+
 2019-01-15  Ben Elliston  <bje@gnu.org>
 
 	Revert:
diff --git a/testsuite/config-guess.sh b/testsuite/config-guess.sh
index d3d53f6..42a013d 100644
--- a/testsuite/config-guess.sh
+++ b/testsuite/config-guess.sh
@@ -20,7 +20,7 @@ run_config_guess()
 			-e "s,@RELEASE@,$release," \
 			-e "s,@SYSTEM@,$system," \
 			-e "s,@VERSION@,$version," \
-			-e "s,@PROCESSOR@,$processor," > uname << EOF
+			-e "s,@PROCESSOR@,$processor," > ./uname << EOF
 #!/bin/sh
 [ \$# -ne 1 ] && exec sh \$0 -s
 [ \$1 = -m ] && echo "@MACHINE@" && exit 0