diff --git a/esphome/components/max9611/max9611.cpp b/esphome/components/max9611/max9611.cpp
index 418a577948..70a94c4ad9 100644
--- a/esphome/components/max9611/max9611.cpp
+++ b/esphome/components/max9611/max9611.cpp
@@ -13,7 +13,7 @@ template<typename T, unsigned B> inline T signextend(const T x) {
   return s.x = x;
 }
 // Map the gain register to in uV/LSB
-const float gain_to_lsb(MAX9611Multiplexer gain) {
+float gain_to_lsb(MAX9611Multiplexer gain) {
   float lsb = 0.0;
   if (gain == MAX9611_MULTIPLEXER_CSA_GAIN1) {
     lsb = 107.50;
diff --git a/esphome/components/modbus_controller/select/__init__.py b/esphome/components/modbus_controller/select/__init__.py
index 9651b5fedb..7d03064fa5 100644
--- a/esphome/components/modbus_controller/select/__init__.py
+++ b/esphome/components/modbus_controller/select/__init__.py
@@ -35,7 +35,7 @@ def ensure_option_map():
     def validator(value):
         cv.check_not_templatable(value)
         option = cv.All(cv.string_strict)
-        mapping = cv.All(cv.int_range(-(2 ** 63), 2 ** 63 - 1))
+        mapping = cv.All(cv.int_range(-(2**63), 2**63 - 1))
         options_map_schema = cv.Schema({option: mapping})
         value = options_map_schema(value)