1 files changed, 1 insertions, 1 deletions
diff --git a/threading.h b/threading.h
index 2e986b59..51a72f74 100644
--- a/threading.h
+++ b/threading.h
@@ -21,7 +21,7 @@
 #include <stdint.h>
 
 intptr_t
-thread_start (void (*fn)(uintptr_t ctx), uintptr_t ctx);
+thread_start (void (*fn)(void *ctx), void *ctx);
 
 int
 thread_join (intptr_t tid);