diff --git a/lib/system/threadlocalstorage.nim b/lib/system/threadlocalstorage.nim
index cea9abb420..b62c903c34 100644
--- a/lib/system/threadlocalstorage.nim
+++ b/lib/system/threadlocalstorage.nim
@@ -141,7 +141,7 @@ else:
                      header: "<pthread.h>".} = cint
   else:
     type
-      SysThread* {.importc: "pthread_t", header: "<sys/types.h>".} = object
+      SysThread* {.importc: "pthread_t", header: "<sys/types.h>".} = int
       Pthread_attr {.importc: "pthread_attr_t",
                        header: "<sys/types.h>".} = object
       ThreadVarSlot {.importc: "pthread_key_t",
diff --git a/tests/generics/tthread_generic.nim b/tests/generics/tthread_generic.nim
index 2af5a76158..300da56a68 100644
--- a/tests/generics/tthread_generic.nim
+++ b/tests/generics/tthread_generic.nim
@@ -1,5 +1,5 @@
 discard """
-  cmd: "nim $target --hints:on --threads:on $options $file"
+  matrix: "--mm:refc; --mm:orc"
   action: compile
 """