diff --git a/src/schedule.cpp b/src/schedule.cpp
index b16cb6d..14635b4 100644
--- a/src/schedule.cpp
+++ b/src/schedule.cpp
@@ -75,15 +75,15 @@
   size_t whiteLength = 0;
 
   // encode the blackIntervalList as an embed TLV structure
-  for (const RepetitiveInterval& element : m_blackIntervalList) {
-    blackLength += encoder.prependBlock(element.wireEncode());
+  for (auto it = m_blackIntervalList.rbegin(); it != m_blackIntervalList.rend(); it++) {
+    blackLength += encoder.prependBlock(it->wireEncode());
   }
   blackLength += encoder.prependVarNumber(blackLength);
   blackLength += encoder.prependVarNumber(tlv::BlackIntervalList);
 
   // encode the whiteIntervalList as an embed TLV structure
-  for (const RepetitiveInterval& element : m_whiteIntervalList) {
-    whiteLength += encoder.prependBlock(element.wireEncode());
+  for (auto it = m_whiteIntervalList.rbegin(); it != m_whiteIntervalList.rend(); it++) {
+    whiteLength += encoder.prependBlock(it->wireEncode());
   }
   whiteLength += encoder.prependVarNumber(whiteLength);
   whiteLength += encoder.prependVarNumber(tlv::WhiteIntervalList);
diff --git a/tests/unit-tests/schedule.t.cpp b/tests/unit-tests/schedule.t.cpp
index 61a974a..1d86787 100644
--- a/tests/unit-tests/schedule.t.cpp
+++ b/tests/unit-tests/schedule.t.cpp
@@ -198,15 +198,15 @@
     0x86, 0x0f,
       0x32, 0x30, 0x31, 0x35, 0x30, 0x38, 0x32, 0x35, 0x54, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
     0x87, 0x0f,
-      0x32, 0x30, 0x31, 0x35, 0x30, 0x38, 0x32, 0x38, 0x54, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+      0x32, 0x30, 0x31, 0x35, 0x30, 0x38, 0x32, 0x35, 0x54, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
     0x88, 0x01,
-      0x06,
+      0x04,
     0x89, 0x01,
-      0x08,
+      0x07,
     0x8a, 0x01,
-      0x01,
+      0x00,
     0x8b, 0x01,
-      0x01,
+      0x00,
   /////
   0x8c, 0x2e, // RepetitiveInterval
     0x86, 0x0f,
@@ -226,15 +226,15 @@
     0x86, 0x0f,
       0x32, 0x30, 0x31, 0x35, 0x30, 0x38, 0x32, 0x35, 0x54, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
     0x87, 0x0f,
-      0x32, 0x30, 0x31, 0x35, 0x30, 0x38, 0x32, 0x35, 0x54, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+      0x32, 0x30, 0x31, 0x35, 0x30, 0x38, 0x32, 0x38, 0x54, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
     0x88, 0x01,
-      0x04,
+      0x06,
     0x89, 0x01,
-      0x07,
+      0x08,
     0x8a, 0x01,
-      0x00,
+      0x01,
     0x8b, 0x01,
-      0x00,
+      0x01,
   /////
   0x8e, 0x30, // BlackIntervalList
   /////