diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # RPi-VK-Driver
-RPi-VK-Driver is a low level GPU driver for the Broadcom Videocore IV GPU that implements a subset of the Vulkan (R) standard. The implementation is not conformant to the standard but tries to follow it as closely as the hardware allows for it.
+RPi-VK-Driver is a low level GPU driver for the Broadcom Videocore IV GPU that implements a subset of the Vulkan® standard. The implementation is not conformant to the standard but tries to follow it as closely as the hardware allows for it.
 
 ## Supported hardware
 The driver currently supports the following Raspberry Pi models: