diff --git a/porting/liteos_a/kernel/src/prng/rand.c b/porting/liteos_a/kernel/src/prng/rand.c
index 2a429645c546eb1b492059e48fe2e4cbe5345b09..65ad238435cc1f73ac06411b8b499921b68fd0c8 100644
--- a/porting/liteos_a/kernel/src/prng/rand.c
+++ b/porting/liteos_a/kernel/src/prng/rand.c
@@ -32,11 +32,9 @@
 #include <stdlib.h>
 #include <stdint.h>
 
-static uint64_t seed;
-
 void srand(unsigned s)
 {
-    return srandom(seed);
+    return srandom(s);
 }
 
 int rand(void)