1 files changed, 3 insertions, 1 deletions
diff --git a/trace.h b/trace.h
index 7d1363e..ced30a3 100644
--- a/trace.h
+++ b/trace.h
@@ -1,8 +1,9 @@
+#ifndef TRACE_H
+#define TRACE_H
 
 #ifdef ENABLE_DTRACE
 #include "memcached_dtrace.h"
 #else
-
 #define MEMCACHED_ASSOC_DELETE(arg0, arg1, arg2)
 #define MEMCACHED_ASSOC_DELETE_ENABLED() (0)
 #define MEMCACHED_ASSOC_FIND(arg0, arg1, arg2)
@@ -63,5 +64,6 @@
 #define MEMCACHED_SLABS_SLABCLASS_ALLOCATE_ENABLED() (0)
 #define MEMCACHED_SLABS_SLABCLASS_ALLOCATE_FAILED(arg0)
 #define MEMCACHED_SLABS_SLABCLASS_ALLOCATE_FAILED_ENABLED() (0)
+#endif
 
 #endif