diff --git a/src/ipa/ipu3/algorithms/awb.h b/src/ipa/ipu3/algorithms/awb.h
index 1916990a5..dbf69c907 100644
--- a/src/ipa/ipu3/algorithms/awb.h
+++ b/src/ipa/ipu3/algorithms/awb.h
@@ -13,7 +13,7 @@
 
 #include <libcamera/geometry.h>
 
-#include "libipa/vector.h"
+#include "libcamera/internal/vector.h"
 
 #include "algorithm.h"
 
diff --git a/src/ipa/libipa/colours.h b/src/ipa/libipa/colours.h
index fa6a8b575..d39b2ca8b 100644
--- a/src/ipa/libipa/colours.h
+++ b/src/ipa/libipa/colours.h
@@ -9,7 +9,7 @@
 
 #include <stdint.h>
 
-#include "vector.h"
+#include "libcamera/internal/vector.h"
 
 namespace libcamera {
 
diff --git a/src/ipa/libipa/pwl.h b/src/ipa/libipa/pwl.h
index d4ec9f4f1..8fdc70538 100644
--- a/src/ipa/libipa/pwl.h
+++ b/src/ipa/libipa/pwl.h
@@ -12,7 +12,7 @@
 #include <utility>
 #include <vector>
 
-#include "vector.h"
+#include "libcamera/internal/vector.h"
 
 namespace libcamera {
 
diff --git a/src/ipa/rkisp1/algorithms/awb.h b/src/ipa/rkisp1/algorithms/awb.h
index e42480486..34ec42cbb 100644
--- a/src/ipa/rkisp1/algorithms/awb.h
+++ b/src/ipa/rkisp1/algorithms/awb.h
@@ -9,8 +9,9 @@
 
 #include <optional>
 
+#include "libcamera/internal/vector.h"
+
 #include "libipa/interpolator.h"
-#include "libipa/vector.h"
 
 #include "algorithm.h"
 
diff --git a/src/ipa/rkisp1/ipa_context.h b/src/ipa/rkisp1/ipa_context.h
index 5d5b79fa6..c765b928a 100644
--- a/src/ipa/rkisp1/ipa_context.h
+++ b/src/ipa/rkisp1/ipa_context.h
@@ -22,10 +22,10 @@
 
 #include "libcamera/internal/debug_controls.h"
 #include "libcamera/internal/matrix.h"
+#include "libcamera/internal/vector.h"
 
 #include <libipa/camera_sensor_helper.h>
 #include <libipa/fc_queue.h>
-#include <libipa/vector.h>
 
 namespace libcamera {
 
diff --git a/src/ipa/rpi/controller/rpi/agc_channel.cpp b/src/ipa/rpi/controller/rpi/agc_channel.cpp
index e79184b7a..a5562760e 100644
--- a/src/ipa/rpi/controller/rpi/agc_channel.cpp
+++ b/src/ipa/rpi/controller/rpi/agc_channel.cpp
@@ -12,8 +12,9 @@
 
 #include <libcamera/base/log.h>
 
+#include "libcamera/internal/vector.h"
+
 #include "libipa/colours.h"
-#include "libipa/vector.h"
 
 #include "../awb_status.h"
 #include "../device_status.h"
@@ -700,7 +701,7 @@ static double computeInitialY(StatisticsPtr &stats, AwbStatus const &awb,
 	 * Note that the weights are applied by the IPA to the statistics directly,
 	 * before they are given to us here.
 	 */
-	ipa::RGB<double> sum{ 0.0 };
+	RGB<double> sum{ 0.0 };
 	double pixelSum = 0;
 	for (unsigned int i = 0; i < stats->agcRegions.numRegions(); i++) {
 		auto &region = stats->agcRegions.get(i);
@@ -716,7 +717,7 @@ static double computeInitialY(StatisticsPtr &stats, AwbStatus const &awb,
 
 	/* Factor in the AWB correction if needed. */
 	if (stats->agcStatsPos == Statistics::AgcStatsPos::PreWb)
-		sum *= ipa::RGB<double>{{ awb.gainR, awb.gainR, awb.gainB }};
+		sum *= RGB<double>{ { awb.gainR, awb.gainR, awb.gainB } };
 
 	double ySum = ipa::rec601LuminanceFromRGB(sum);