diff --git a/src/libsystemd/sd-json/json-util.h b/src/libsystemd/sd-json/json-util.h
index 48a0afa289..ecb4e2d633 100644
--- a/src/libsystemd/sd-json/json-util.h
+++ b/src/libsystemd/sd-json/json-util.h
@@ -268,6 +268,7 @@ enum {
 #define JSON_BUILD_PAIR_PIDREF(name, p) SD_JSON_BUILD_PAIR(name, JSON_BUILD_PIDREF(p))
 #define JSON_BUILD_PAIR_DEVNUM(name, d) SD_JSON_BUILD_PAIR(name, JSON_BUILD_DEVNUM(d))
 #define JSON_BUILD_PAIR_ENUM(name, s) SD_JSON_BUILD_PAIR(name, JSON_BUILD_STRING_UNDERSCORIFY(s))
+#define JSON_BUILD_PAIR_ENUM_NON_EMPTY(name, s) JSON_BUILD_PAIR_STRING_NON_EMPTY_UNDERSCORIFY(name, s)
 #define JSON_BUILD_PAIR_YES_NO(name, b) SD_JSON_BUILD_PAIR(name, SD_JSON_BUILD_STRING(yes_no(b)))
 
 #define JSON_BUILD_PAIR_CONDITION_UNSIGNED(condition, name, value) \