diff --git a/src/ipa/ipu3/ipa_context.cpp b/src/ipa/ipu3/ipa_context.cpp
index 2355a9c7..ea92be77 100644
--- a/src/ipa/ipu3/ipa_context.cpp
+++ b/src/ipa/ipu3/ipa_context.cpp
@@ -133,4 +133,9 @@ namespace libcamera::ipa::ipu3 {
  * <linux/intel-ipu3.h> struct ipu3_uapi_gamma_corr_lut for further details.
  */
 
+/**
+ * \var IPAFrameContext::frameId
+ * \brief Frame number for this frame context
+ */
+
 } /* namespace libcamera::ipa::ipu3 */
diff --git a/src/ipa/ipu3/ipa_context.h b/src/ipa/ipu3/ipa_context.h
index 1e46c61a..ee8f7b55 100644
--- a/src/ipa/ipu3/ipa_context.h
+++ b/src/ipa/ipu3/ipa_context.h
@@ -51,6 +51,8 @@ struct IPAFrameContext {
 		double gamma;
 		struct ipu3_uapi_gamma_corr_lut gammaCorrection;
 	} toneMapping;
+
+	unsigned int frameId;
 };
 
 struct IPAContext {