diff --git a/radio/src/storage/conversions/conversions_216_218.cpp b/radio/src/storage/conversions/conversions_216_218.cpp
index bb9363426..6fee1dd12 100644
--- a/radio/src/storage/conversions/conversions_216_218.cpp
+++ b/radio/src/storage/conversions/conversions_216_218.cpp
@@ -901,7 +901,7 @@ void convertModelData_216_to_217(ModelData &model)
   // PPM center range
   // Telemetry custom screens
 
-  static_assert(sizeof(ModelData_v216) <= sizeof(ModelData));
+  static_assert(sizeof(ModelData_v216) <= sizeof(ModelData), "ModelData size has been reduced");
 
   ModelData_v216 oldModel;
   memcpy(&oldModel, &model, sizeof(oldModel));
@@ -1076,7 +1076,7 @@ void convertModelData_216_to_217(ModelData &model)
 
 void convertModelData_217_to_218(ModelData &model)
 {
-  static_assert(sizeof(ModelData_v217) <= sizeof(ModelData));
+  static_assert(sizeof(ModelData_v217) <= sizeof(ModelData), "ModelData size has been reduced");
 
   ModelData_v217 oldModel;
   memcpy(&oldModel, &model, sizeof(oldModel));
diff --git a/radio/src/storage/conversions/conversions_218_219.cpp b/radio/src/storage/conversions/conversions_218_219.cpp
index 6db35fddc..00f9aff11 100644
--- a/radio/src/storage/conversions/conversions_218_219.cpp
+++ b/radio/src/storage/conversions/conversions_218_219.cpp
@@ -34,7 +34,7 @@ typedef ModelData ModelData_v219;
 
 void convertModelData_218_to_219(ModelData &model)
 {
-  static_assert(sizeof(ModelData_v218) <= sizeof(ModelData));
+  static_assert(sizeof(ModelData_v218) <= sizeof(ModelData), "ModelData size has been reduced");
 
   ModelData_v218 oldModel;
   memcpy(&oldModel, &model, sizeof(oldModel));