diff --git a/runtime/src/libc/syscall.c b/runtime/src/libc/syscall.c
index 0010fc7..b337091 100644
--- a/runtime/src/libc/syscall.c
+++ b/runtime/src/libc/syscall.c
@@ -506,7 +506,7 @@ wasm_geteuid()
 
 #define SYS_GET_TIME 228
 struct wasm_time_spec {
-	u32 sec;
+	u64 sec;
 	u32 nanosec;
 };
 
diff --git a/runtime/src/libc/uvio.c b/runtime/src/libc/uvio.c
index e69d644..9df18c0 100644
--- a/runtime/src/libc/uvio.c
+++ b/runtime/src/libc/uvio.c
@@ -582,7 +582,7 @@ wasm_geteuid()
 
 #define SYS_GET_TIME 228
 struct wasm_time_spec {
-	u32 sec;
+	u64 sec;
 	u32 nanosec;
 };