diff --git a/unix/linux/types.go b/unix/linux/types.go
index fecd2ce1..bd5667c7 100644
--- a/unix/linux/types.go
+++ b/unix/linux/types.go
@@ -230,8 +230,8 @@ struct sockaddr_rc {
 // copied from /usr/include/linux/un.h
 struct my_sockaddr_un {
 	sa_family_t sun_family;
-#if defined(__ARM_EABI__) || defined(__powerpc64__)
-	// on ARM char is by default unsigned
+#if defined(__ARM_EABI__) || defined(__powerpc64__) || defined(__riscv)
+	// on some platforms char is unsigned by default
 	signed char sun_path[108];
 #else
 	char sun_path[108];
diff --git a/unix/ztypes_linux_riscv64.go b/unix/ztypes_linux_riscv64.go
index 6009e5dd..4146e6d2 100644
--- a/unix/ztypes_linux_riscv64.go
+++ b/unix/ztypes_linux_riscv64.go
@@ -212,7 +212,7 @@ type RawSockaddrInet6 struct {
 
 type RawSockaddrUnix struct {
 	Family uint16
-	Path   [108]uint8
+	Path   [108]int8
 }
 
 type RawSockaddrLinklayer struct {