diff --git a/src/libcamera/control_ids_core.yaml b/src/libcamera/control_ids_core.yaml
index bf1f1a839f6a..303b0d32e020 100644
--- a/src/libcamera/control_ids_core.yaml
+++ b/src/libcamera/control_ids_core.yaml
@@ -243,6 +243,13 @@ controls:
         Specify a fixed contrast parameter. Normal contrast is given by the
         value 1.0; larger values produce images with more contrast.
 
+  - Gamma:
+      type: float
+      description:  |
+        Specify a fixed gamma value. Default must be 2.2 which closely mimics 
+        sRGB gamma. Note that this is camera gamma, so it is applied as 
+        1.0/gamma
+
   - Lux:
       type: float
       description: |