diff --git a/src/ipa/raspberrypi/controller/rpi/agc.hpp b/src/ipa/raspberrypi/controller/rpi/agc.hpp
index ba7ae09..23374d5 100644
--- a/src/ipa/raspberrypi/controller/rpi/agc.hpp
+++ b/src/ipa/raspberrypi/controller/rpi/agc.hpp
@@ -116,9 +116,9 @@ private:
 	std::string exposure_mode_name_;
 	std::string constraint_mode_name_;
 	double ev_;
-	double flicker_period_;
-	double fixed_shutter_;
-	double fixed_analogue_gain_;
+	double flicker_period_ = 0;
+	double fixed_shutter_ = 0;
+	double fixed_analogue_gain_ = 0;
 };
 
 } // namespace RPiController