diff --git a/Makefile b/Makefile
index 97dc6fd..acc3665 100644
--- a/Makefile
+++ b/Makefile
@@ -5,7 +5,7 @@ CURL_FLAGS := -O -\# --fail --location --tlsv1.3 --proto =https --max-time 300
 TARGET = blink
 TARGET_MCU?=CH32V003
 NEWLIB=/usr/arm-none-eabi/include
-TOOL_PREFIX := riscv64-linux-gnu
+TOOL_PREFIX := riscv32-linux-gnu
 CC := $(TOOL_PREFIX)-gcc
 OBJDUMP := $(TOOL_PREFIX)-objdump
 OBJCOPY := $(TOOL_PREFIX)-objcopy