diff --git a/worksheet7/Makefile b/worksheet7/Makefile
index 99d2ce0e1c438a549731ad76659aa0e8cda87710..f8c27a0945496bd735b5544d5b5c51ba74d8a2c8 100644
--- a/worksheet7/Makefile
+++ b/worksheet7/Makefile
@@ -8,7 +8,7 @@ OBJS=  $(STARTUP) stm32f10x_rcc.o stm32f10x_gpio.o stm32f10x_tim.o misc.o stm32f
 
 # Tool path
 
-TOOLROOT=/usr/local/bin/
+TOOLROOT=/usr/bin
 
 # Library path