diff --git a/lib/shmem.C b/lib/shmem.C
index dc4cf98028..b35c11adba 100755
--- a/lib/shmem.C
+++ b/lib/shmem.C
@@ -62,7 +62,7 @@ int detach_shmem(key_t key) {
 
     retval = attach_shmem(key, &p);
     if (retval) return retval;
-    retval = shmdt(p);
+    retval = shmdt((char *)p);
     if (retval) perror("detach_shmem: shmdt");
     return retval;
 }
diff --git a/lib/shmem_test.C b/lib/shmem_test.C
index 9ec1c626a3..1ee54e794f 100644
--- a/lib/shmem_test.C
+++ b/lib/shmem_test.C
@@ -9,6 +9,7 @@
 #include <string.h>
 #include <stdio.h>
 #include <sys/wait.h>
+#include <unistd.h>
 
 #include "shmem.h"