diff --git a/aclocal.m4 b/aclocal.m4
index 4a74cec0b..5cbce66e7 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -124,7 +124,7 @@ dnl
 AC_DEFUN(SUDO_IO_LOGDIR, [
     AC_MSG_CHECKING(for I/O log dir location)
     if test "${with_iologdir-yes}" != "yes"; then
-	iolog_dir="$with_iologdir":
+	iolog_dir="$with_iologdir"
     elif test -d "/var/log"; then
 	iolog_dir="/var/log/sudo-io"
     elif test -d "/var/adm"; then
diff --git a/configure b/configure
index e322648fb..084711591 100755
--- a/configure
+++ b/configure
@@ -18562,7 +18562,7 @@ EOF
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for I/O log dir location" >&5
 $as_echo_n "checking for I/O log dir location... " >&6; }
     if test "${with_iologdir-yes}" != "yes"; then
-	iolog_dir="$with_iologdir":
+	iolog_dir="$with_iologdir"
     elif test -d "/var/log"; then
 	iolog_dir="/var/log/sudo-io"
     elif test -d "/var/adm"; then