diff --git a/src/libcamera/shaders/bayer_1x_packed.frag b/src/libcamera/shaders/bayer_1x_packed.frag
index 23747f78a6313503a46b61ed5bae6e7c178c5745..fbd15b32e5b3b510ba0dd5a75704f9ff3942e00c 100644
--- a/src/libcamera/shaders/bayer_1x_packed.frag
+++ b/src/libcamera/shaders/bayer_1x_packed.frag
@@ -225,7 +225,11 @@ void main(void)
 			vec3(patterns.y, C, patterns.x) :
 			vec3(patterns.wz, C));
 
-	rgb = rgb - blacklevel;
+	/*
+	 * \todo: Black level normalising, AWB and digital gain could be
+	 * reworked into a single multiplication.
+	 */
+	rgb = (rgb - blacklevel) / (1.0 - blacklevel);
 
 	/*
 	 *   CCM is a 3x3 in the format
diff --git a/src/libcamera/shaders/bayer_unpacked.frag b/src/libcamera/shaders/bayer_unpacked.frag
index 1b85196ae16130670eb3d1c077ab4884119ae63c..0f85e9a4ded7f43ce4fdabf1e045275ae2bc8f53 100644
--- a/src/libcamera/shaders/bayer_unpacked.frag
+++ b/src/libcamera/shaders/bayer_unpacked.frag
@@ -128,7 +128,11 @@ void main(void) {
             vec3(PATTERN.w, C, PATTERN.z) :
             vec3(PATTERN.yx, C));
 
-    rgb = rgb - blacklevel;
+    /*
+     * \todo: Black level normalising, AWB and digital gain could be
+     * reworked into a single multiplication.
+     */
+    rgb = (rgb - blacklevel) / (1.0 - blacklevel);
 
     /*
      *   CCM is a 3x3 in the format