1 files changed, 2 insertions, 0 deletions
diff --git a/expr.h b/expr.h
index 562d84e..c8c8ce0 100644
--- a/expr.h
+++ b/expr.h
@@ -65,6 +65,8 @@ enum mode_cmp {
  * Possible time units.
  */
 enum time_unit {
+	/** Seconds. */
+	SECONDS,
 	/** Minutes. */
 	MINUTES,
 	/** Days. */