diff --git a/health-and-safety/photosensitive_epilepsy.md b/health-and-safety/photosensitive_epilepsy.md
index 660b4ed..4843887 100644
--- a/health-and-safety/photosensitive_epilepsy.md
+++ b/health-and-safety/photosensitive_epilepsy.md
@@ -79,7 +79,7 @@ long the light sensor (within the light meter) takes to charge, based
 on the amount of light hitting it. The more light hitting the sensor,
 the quicker it charges and reaches its limit. If there is no or little
 light hitting the sensor, it will take longer to charge which means it
-can determine what the current light level is. The amount of light in
+can't determine what the current light level is. The amount of light in
 Ritherdon (factory) changes throughout the course of the day hence the
 inconsistent readings-per-second rates. For more information on how
 the light meters measure the light levels, head to: