diff --git a/src/cpu/rv32cpu.c b/src/cpu/rv32cpu.c
index 37af05a..c3d26a8 100644
--- a/src/cpu/rv32cpu.c
+++ b/src/cpu/rv32cpu.c
@@ -39,7 +39,7 @@ static void cpu_print_instruction(instruction_t* instruction);
 
 void cpu_init()
 {
-	cpu0 = malloc(sizeof(rv32_cpu_t));
+	cpu0 = calloc(1, sizeof(rv32_cpu_t));
 	cpu0->regs.zero = 0;
 }