diff --git a/src/ipa/simple/algorithms/lut.cpp b/src/ipa/simple/algorithms/lut.cpp
index 7418daa1..54cb804e 100644
--- a/src/ipa/simple/algorithms/lut.cpp
+++ b/src/ipa/simple/algorithms/lut.cpp
@@ -35,7 +35,7 @@ int Lut::configure(IPAContext &context,
 		   [[maybe_unused]] const IPAConfigInfo &configInfo)
 {
 	/* Gamma value is fixed */
-	context.configuration.gamma = 0.5;
+	context.configuration.gamma = 1.0 / 2.2;
 	context.activeState.knobs.contrast = std::optional<double>();
 	updateGammaTable(context);