diff --git a/src/Distribution/DvmhDirectiveBase.cpp b/src/Distribution/DvmhDirectiveBase.cpp
index 996a105..28576a8 100644
--- a/src/Distribution/DvmhDirectiveBase.cpp
+++ b/src/Distribution/DvmhDirectiveBase.cpp
@@ -760,6 +760,8 @@ json AlignRuleBase::toJson()
         tuple["dimNum"] = dimNum;
         tuple["a"] = AB.first;
         tuple["b"] = AB.second;
+
+        alignRuleWithJ.push_back(tuple);
     }
     retVal["alignRuleWith"] = alignRuleWithJ;
     return retVal;