diff --git a/docs/feature_rgb_matrix.md b/docs/feature_rgb_matrix.md
index fcf2f1203084..cb24d3caa3b8 100644
--- a/docs/feature_rgb_matrix.md
+++ b/docs/feature_rgb_matrix.md
@@ -19,7 +19,7 @@ You can use between 1 and 4 IS31FL3731 IC's. Do not specify `DRIVER_ADDR_<N>` de
 
 | Variable | Description | Default |
 |----------|-------------|---------|
-| `ISSI_TIMEOUT` | (Optional) How long to wait for i2c messages | 100 |
+| `ISSI_TIMEOUT` | (Optional) How long to wait for i2c messages | 100ms |
 | `ISSI_PERSISTENCE` | (Optional) Retry failed messages this many times | 0 |
 | `DRIVER_COUNT` | (Required) How many RGB driver IC's are present | |
 | `DRIVER_LED_TOTAL` | (Required) How many RGB lights are present across all drivers | |
@@ -80,7 +80,7 @@ You can use between 1 and 4 IS31FL3733 IC's. Do not specify `DRIVER_ADDR_<N>` de
 
 | Variable | Description | Default |
 |----------|-------------|---------|
-| `ISSI_TIMEOUT` | (Optional) How long to wait for i2c messages | 100 |
+| `ISSI_TIMEOUT` | (Optional) How long to wait for i2c messages | 100ms |
 | `ISSI_PERSISTENCE` | (Optional) Retry failed messages this many times | 0 |
 | `DRIVER_COUNT` | (Required) How many RGB driver IC's are present | |
 | `DRIVER_LED_TOTAL` | (Required) How many RGB lights are present across all drivers | |