diff --git a/sys/amd64/vmm/io/vatpic.c b/sys/amd64/vmm/io/vatpic.c
index 298560c98e2..ee6fc84f90c 100644
--- a/sys/amd64/vmm/io/vatpic.c
+++ b/sys/amd64/vmm/io/vatpic.c
@@ -591,6 +591,7 @@ vatpic_write(struct vatpic *vatpic, struct atpic *atpic, bool in, int port,
 	int error;
 	uint8_t val;
 
+	error = 0;
 	val = *eax;
 
 	VATPIC_LOCK(vatpic);