diff --git a/main.c b/main.c
index eeb6040..f8abe79 100644
--- a/main.c
+++ b/main.c
@@ -391,7 +391,7 @@ int main(void)
 
 	// generate gamma correction table (with fixed gamma value)
 	for (uint16_t i=0; i<LENGTH(gamma_correction_lut); i++) {
-		gamma_correction_lut[i] = powf((float)i / (float)LENGTH(gamma_correction_lut), 2.5)*LENGTH(gamma_correction_lut);
+		gamma_correction_lut[i] = powf((float)i / (float)LENGTH(gamma_correction_lut), 2.2)*LENGTH(gamma_correction_lut);
 	}
 
 	// setup WS2812b LEDs