diff --git a/rtengine/rawflatfield.cc b/rtengine/rawflatfield.cc
index cbc5e6bd6..22dbca852 100644
--- a/rtengine/rawflatfield.cc
+++ b/rtengine/rawflatfield.cc
@@ -263,7 +263,7 @@ void cfaboxblur(const float* const * riFlatFile, float* cfablur, int boxH, int b
 namespace rtengine
 {
 
-void RawImageSource::processFlatField(const procparams::RAWParams &raw, const RawImage *riFlatFile, const float black[4])
+void RawImageSource::processFlatField(const procparams::RAWParams &raw, const RawImage *riFlatFile, array2D<float> &rawData, const float black[4])
 {
 //    BENCHFUN
     std::unique_ptr<float[]> cfablur(new float[H * W]);
diff --git a/rtengine/rawimagesource.cc b/rtengine/rawimagesource.cc
index 689dddf20..de0f07422 100644
--- a/rtengine/rawimagesource.cc
+++ b/rtengine/rawimagesource.cc
@@ -2495,7 +2495,7 @@ void RawImageSource::copyOriginalPixels(const RAWParams &raw, RawImage *src, Raw
 
 
         if (riFlatFile && W == riFlatFile->get_width() && H == riFlatFile->get_height()) {
-            processFlatField(raw, riFlatFile, black);
+            processFlatField(raw, riFlatFile, rawData, black);
         }  // flatfield
     } else if (ri->get_colors() == 1) {
         // Monochrome
@@ -2517,7 +2517,7 @@ void RawImageSource::copyOriginalPixels(const RAWParams &raw, RawImage *src, Raw
             }
         }
         if (riFlatFile && W == riFlatFile->get_width() && H == riFlatFile->get_height()) {
-            processFlatField(raw, riFlatFile, black);
+            processFlatField(raw, riFlatFile, rawData, black);
         }  // flatfield
     } else {
         // No bayer pattern
diff --git a/rtengine/rawimagesource.h b/rtengine/rawimagesource.h
index b463ea788..945c9da3d 100644
--- a/rtengine/rawimagesource.h
+++ b/rtengine/rawimagesource.h
@@ -137,7 +137,7 @@ public:
         return rgbSourceModified;   // tracks whether cached rgb output of demosaic has been modified
     }
 
-    void        processFlatField(const procparams::RAWParams &raw, const RawImage *riFlatFile, const float black[4]);
+    void        processFlatField(const procparams::RAWParams &raw, const RawImage *riFlatFile, array2D<float> &rawData, const float black[4]);
     void        copyOriginalPixels(const procparams::RAWParams &raw, RawImage *ri, RawImage *riDark, RawImage *riFlatFile, array2D<float> &rawData  );
     void        scaleColors (int winx, int winy, int winw, int winh, const procparams::RAWParams &raw, array2D<float> &rawData); // raw for cblack
     void        WBauto(double &tempref, double &greenref, array2D<float> &redloc, array2D<float> &greenloc, array2D<float> &blueloc, int bfw, int bfh, double &avg_rm, double &avg_gm, double &avg_bm, double &tempitc, double &greenitc, float &studgood, bool &twotimes, const procparams::WBParams & wbpar, int begx, int begy, int yEn, int xEn, int cx, int cy, const procparams::ColorManagementParams &cmp, const procparams::RAWParams &raw) override;