diff --git a/src/lj_prng.c b/src/lj_prng.c
index a9bd350a..fff155a1 100644
--- a/src/lj_prng.c
+++ b/src/lj_prng.c
@@ -126,7 +126,7 @@ static PRGR libfunc_rgr;
 #endif
 
 #if LJ_TARGET_HAS_GETENTROPY
-extern int getentropy(void *buf, size_t len);
+extern int getentropy(void *buf, size_t len)
 #ifdef __ELF__
   __attribute__((weak))
 #endif