diff --git a/src/fsfw/subsystem/modes/ModeDefinitions.h b/src/fsfw/subsystem/modes/ModeDefinitions.h
index 70a66fa6..ffeace5a 100644
--- a/src/fsfw/subsystem/modes/ModeDefinitions.h
+++ b/src/fsfw/subsystem/modes/ModeDefinitions.h
@@ -21,7 +21,6 @@ class ModeListEntry : public SerialLinkedListAdapter<SerializeIF>,
   SerializeElement<uint32_t> value2 = 0;
   SerializeElement<uint8_t> value3 = 0;
   SerializeElement<uint8_t> value4 = 0;
-  SerializeElement<uint8_t> value5 = 0;
 
   ModeListEntry(const ModeListEntry& other)
       : SerialLinkedListAdapter(), LinkedElement<ModeListEntry>(this) {
@@ -29,7 +28,6 @@ class ModeListEntry : public SerialLinkedListAdapter<SerializeIF>,
     value2.entry = other.value2.entry;
     value3.entry = other.value3.entry;
     value4.entry = other.value4.entry;
-    value5.entry = other.value5.entry;
     setLinks();
   }
 
@@ -38,7 +36,6 @@ class ModeListEntry : public SerialLinkedListAdapter<SerializeIF>,
     this->value2.entry = other.value2.entry;
     this->value3.entry = other.value3.entry;
     this->value4.entry = other.value4.entry;
-    this->value5.entry = other.value5.entry;
     return *this;
   }
 
@@ -47,7 +44,6 @@ class ModeListEntry : public SerialLinkedListAdapter<SerializeIF>,
     value1.setNext(&value2);
     value2.setNext(&value3);
     value3.setNext(&value4);
-    value4.setNext(&value5);
   }
 
   // for Sequences
@@ -84,7 +80,7 @@ class ModeListEntry : public SerialLinkedListAdapter<SerializeIF>,
     bool submodesAllowed = (value4.entry & mode::SpecialSubmodeFlags::ALLOWED_MASK) ==
                            mode::SpecialSubmodeFlags::ALLOWED_MASK;
     if (submodesAllowed and mask != nullptr) {
-      *mask = value5.entry;
+      *mask = value3.entry;
     }
     return submodesAllowed;
   }
@@ -113,14 +109,14 @@ class ModeListEntry : public SerialLinkedListAdapter<SerializeIF>,
    */
   void enableSubmodeAllowed(uint8_t mask) {
     value4.entry |= mode::SpecialSubmodeFlags::ALLOWED_MASK;
-    value5.entry = mask;
+    value3.entry = mask;
   }
   /**
    * Enforce the equality of submodes for mode checks. This is the default.
    */
   void disableSubmodeAllowed() {
     value4.entry &= ~mode::SpecialSubmodeFlags::ALLOWED_MASK;
-    value5.entry = 0;
+    value3.entry = 0;
   }
 };
 
diff --git a/unittests/subsystem/testModeDef.cpp b/unittests/subsystem/testModeDef.cpp
index 758b3301..e5a4e733 100644
--- a/unittests/subsystem/testModeDef.cpp
+++ b/unittests/subsystem/testModeDef.cpp
@@ -16,20 +16,30 @@ TEST_CASE("Mode Definitions", "[mode]") {
     CHECK(entry.submodesAllowed(&mask) == false);
   }
 
+  SECTION("Inherit submode") {
+    entry.enableInheritSubmode();
+    CHECK(entry.inheritSubmode() == true);
+    entry.disableInheritSubmode();
+    CHECK(entry.inheritSubmode() == false);
+  }
+
   SECTION("Allowed submode mask") {
     entry.allowAllSubmodes();
     uint8_t mask;
     CHECK(entry.submodesAllowed(&mask) == true);
     CHECK(mask == 0xff);
+    entry.enableSubmodeAllowed(0x32);
+    CHECK(entry.submodesAllowed(&mask) == true);
+    CHECK(mask == 0x32);
+    entry.disableSubmodeAllowed();
+    CHECK(entry.submodesAllowed(&mask) == false);
   }
 
-  SECTION("Serialization") {
+  SECTION("Serialization nominal") {
     std::array<uint8_t, 32> buf{};
     entry.setObject(0x1f2f3f4f);
     entry.setMode(HasModesIF::MODE_ON);
     entry.setSubmode(2);
-    entry.enableInheritSubmode();
-    entry.enableSubmodeAllowed(0x1f);
     uint8_t* serPtr = buf.data();
     size_t serLen = 0;
     REQUIRE(entry.serialize(&serPtr, &serLen, buf.size(), SerializeIF::Endianness::NETWORK) ==
@@ -43,7 +53,50 @@ TEST_CASE("Mode Definitions", "[mode]") {
     CHECK(buf[6] == 0);
     CHECK(buf[7] == HasModesIF::MODE_ON);
     CHECK(buf[8] == 2);
-    CHECK(buf[9] == (mode::SpecialSubmodeFlags::ALLOWED_MASK | mode::SpecialSubmodeFlags::INHERIT));
-    CHECK(buf[10] == 0x1f);
+    CHECK(buf[9] == 0);
+  }
+
+  SECTION("Serialization inherit submode") {
+    std::array<uint8_t, 32> buf{};
+    entry.setObject(0x1f2f3f4f);
+    entry.setMode(HasModesIF::MODE_ON);
+    entry.setSubmode(2);
+    entry.enableInheritSubmode();
+    uint8_t* serPtr = buf.data();
+    size_t serLen = 0;
+    REQUIRE(entry.serialize(&serPtr, &serLen, buf.size(), SerializeIF::Endianness::NETWORK) ==
+            returnvalue::OK);
+    CHECK(buf[0] == 0x1f);
+    CHECK(buf[1] == 0x2f);
+    CHECK(buf[2] == 0x3f);
+    CHECK(buf[3] == 0x4f);
+    CHECK(buf[4] == 0);
+    CHECK(buf[5] == 0);
+    CHECK(buf[6] == 0);
+    CHECK(buf[7] == HasModesIF::MODE_ON);
+    CHECK(buf[8] == 2);
+    CHECK(buf[9] == mode::SpecialSubmodeFlags::INHERIT);
+  }
+
+  SECTION("Serialization submode mask") {
+    std::array<uint8_t, 32> buf{};
+    entry.setObject(0x1f2f3f4f);
+    entry.setMode(HasModesIF::MODE_ON);
+    entry.setSubmode(2);
+    entry.enableSubmodeAllowed(0x1f);
+    uint8_t* serPtr = buf.data();
+    size_t serLen = 0;
+    REQUIRE(entry.serialize(&serPtr, &serLen, buf.size(), SerializeIF::Endianness::NETWORK) ==
+            returnvalue::OK);
+    CHECK(buf[0] == 0x1f);
+    CHECK(buf[1] == 0x2f);
+    CHECK(buf[2] == 0x3f);
+    CHECK(buf[3] == 0x4f);
+    CHECK(buf[4] == 0);
+    CHECK(buf[5] == 0);
+    CHECK(buf[6] == 0);
+    CHECK(buf[7] == HasModesIF::MODE_ON);
+    CHECK(buf[8] == 0x1f);
+    CHECK(buf[9] == mode::SpecialSubmodeFlags::ALLOWED_MASK);
   }
 }