diff --git a/src/ipa/rkisp1/algorithms/filter.cpp b/src/ipa/rkisp1/algorithms/filter.cpp
index 7598ef8a..8ad79801 100644
--- a/src/ipa/rkisp1/algorithms/filter.cpp
+++ b/src/ipa/rkisp1/algorithms/filter.cpp
@@ -39,6 +39,17 @@ LOG_DEFINE_CATEGORY(RkISP1Filter)
 static constexpr uint32_t kFiltLumWeightDefault = 0x00022040;
 static constexpr uint32_t kFiltModeDefault = 0x000004f2;
 
+/**
+ * \copydoc libcamera::ipa::Algorithm::init
+ */
+int Filter::init(IPAContext &context,
+		 [[maybe_unused]] const YamlObject &tuningData)
+{
+	auto &cmap = context.ctrlMap;
+	cmap[&controls::Sharpness] = ControlInfo(0.0f, 10.0f, 1.0f);
+
+	return 0;
+}
 /**
  * \copydoc libcamera::ipa::Algorithm::queueRequest
  */
diff --git a/src/ipa/rkisp1/algorithms/filter.h b/src/ipa/rkisp1/algorithms/filter.h
index 8f858e57..37d8938d 100644
--- a/src/ipa/rkisp1/algorithms/filter.h
+++ b/src/ipa/rkisp1/algorithms/filter.h
@@ -21,6 +21,7 @@ public:
 	Filter() = default;
 	~Filter() = default;
 
+	int init(IPAContext &context, const YamlObject &tuningData) override;
 	void queueRequest(IPAContext &context, const uint32_t frame,
 			  IPAFrameContext &frameContext,
 			  const ControlList &controls) override;
diff --git a/src/ipa/rkisp1/rkisp1.cpp b/src/ipa/rkisp1/rkisp1.cpp
index 1ed7d7d9..cf66d555 100644
--- a/src/ipa/rkisp1/rkisp1.cpp
+++ b/src/ipa/rkisp1/rkisp1.cpp
@@ -116,7 +116,6 @@ const IPAHwSettings ipaHwSettingsV12{
 /* List of controls handled by the RkISP1 IPA */
 const ControlInfoMap::Map rkisp1Controls{
 	{ &controls::DebugMetadataEnable, ControlInfo(false, true, false) },
-	{ &controls::Sharpness, ControlInfo(0.0f, 10.0f, 1.0f) },
 	{ &controls::draft::NoiseReductionMode, ControlInfo(controls::draft::NoiseReductionModeValues) },
 };