1 files changed, 1 insertions, 0 deletions

diff --git a/docs/feature_rgb_matrix.md b/docs/feature_rgb_matrix.md
index 5695acc50..92fd62b32 100644
--- a/docs/feature_rgb_matrix.md
+++ b/docs/feature_rgb_matrix.md
@@ -199,6 +199,7 @@ enum rgb_matrix_effects {
     RGB_MATRIX_SOLID_COLOR = 1,     // Static single hue, no speed support
     RGB_MATRIX_ALPHAS_MODS,         // Static dual hue, speed is hue for secondary hue
     RGB_MATRIX_GRADIENT_UP_DOWN,    // Static gradient top to bottom, speed controls how much gradient changes
+    RGB_MATRIX_GRADIENT_LEFT_RIGHT,    // Static gradient left to right, speed controls how much gradient changes
     RGB_MATRIX_BREATHING,           // Single hue brightness cycling animation
     RGB_MATRIX_BAND_SAT,        // Single hue band fading saturation scrolling left to right
     RGB_MATRIX_BAND_VAL,        // Single hue band fading brightness scrolling left to right