diff --git a/README.md b/README.md
index efabead..672099f 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ technology
 
 components:
 
-- [blue pill](ihttps://wiki.cuvoodoo.info/doku.php?id=stm32f1xx#blue_pill), based on a STM32F103C8T6: development board to control everything
+- [blue pill](https://wiki.cuvoodoo.info/doku.php?id=stm32f1xx#blue_pill), based on a STM32F103C8T6: development board to control everything
 - HLK-PM01 power module: 100-240V AC to 5V DC power supply to power the board and other peripherals (protected with a 0.25A glass fuse)
 - VS1838b: 38 kHz infrared demodulator to receive the codes from a remote control (connected using a 3.5 mm TRS jack)
 - G3MB-202P: compact 240V AC 2A solid state relay to switch mains electricity (protected with a 2A fuse)