diff --git a/esphome/components/number/number_call.h b/esphome/components/number/number_call.h
index 0f6889dcb6..c6f8ec0d6e 100644
--- a/esphome/components/number/number_call.h
+++ b/esphome/components/number/number_call.h
@@ -8,7 +8,7 @@ namespace esphome::number {
 
 class Number;
 
-enum NumberOperation {
+enum NumberOperation : uint8_t {
   NUMBER_OP_NONE,
   NUMBER_OP_SET,
   NUMBER_OP_INCREMENT,
@@ -38,8 +38,8 @@ class NumberCall {
                                         float limit);
 
   Number *const parent_;
-  NumberOperation operation_{NUMBER_OP_NONE};
   optional<float> value_;
+  NumberOperation operation_{NUMBER_OP_NONE};
   bool cycle_;
 };