diff --git a/README.md b/README.md
index 9955da42..7ba7d836 100644
--- a/README.md
+++ b/README.md
@@ -104,7 +104,7 @@ Even if tracy is disabled, you still have to pay the no-op function call cost. T
 
 Tracy provides bindings for profiling OpenGL execution time on GPU. To use it, you will need to include the `tracy/TracyOpenGL.hpp` header file and declare each of your rendering contexts using the `TracyGpuContext` macro (typically you will only have one context). Tracy expects no more than one context per thread and no context migration.
 
-To mark GPU zone use the `TracyGpuZone( name )` macro, where `name` is a string literal name of the zone. Alternatively you may use `TracyGpuZoneC( name, color )` to specify zone color.
+To mark a GPU zone use the `TracyGpuZone( name )` macro, where `name` is a string literal name of the zone. Alternatively you may use `TracyGpuZoneC( name, color )` to specify zone color.
 
 You also need to periodically collect the GPU events using the `TracyGpuCollect` macro. A good place to do it is after swap buffers function call.