diff --git a/esphome/components/ld24xx/ld24xx.h b/esphome/components/ld24xx/ld24xx.h
index 70862b6895..f8a5299e3a 100644
--- a/esphome/components/ld24xx/ld24xx.h
+++ b/esphome/components/ld24xx/ld24xx.h
@@ -40,7 +40,7 @@
 namespace esphome::ld24xx {
 
 /// Parse a little-endian 16-bit unsigned value from two bytes.
-static inline uint16_t two_byte_to_uint16(uint8_t low, uint8_t high) { return ((uint16_t) high << 8) | low; }
+static constexpr uint16_t two_byte_to_uint16(uint8_t low, uint8_t high) { return ((uint16_t) high << 8) | low; }
 
 // Helper to find index of value in constexpr array
 template<size_t N> optional<size_t> find_index(const uint32_t (&arr)[N], uint32_t value) {