diff --git a/calibration.html b/calibration.html
index c5a0b55..0abc279 100644
--- a/calibration.html
+++ b/calibration.html
@@ -461,7 +461,7 @@ M84 ; disable motors
7. Enable vase/spiral mode (optional) |
- Not recommended for Cura. Testing suggests the flow rate in increased which will void the test. |
+ Not recommended for Cura. Testing suggests the flow rate is increased which will void the test. |
Layer > Single outline corkscrew printing mode (vase mode) |
Print settings > Layers and perimeters > Vertical shells > Spiral vase |