diff --git a/include/dpfilter.h b/include/dpfilter.h
index 5b09dc9c23c..deb8db3fc41 100644
--- a/include/dpfilter.h
+++ b/include/dpfilter.h
@@ -23,7 +23,7 @@
 #define DPFLTR_WARNING_LEVEL    1
 #define DPFLTR_TRACE_LEVEL      2
 #define DPFLTR_INFO_LEVEL       3
-#define DPFLTR_MASK     0x8000000
+#define DPFLTR_MASK    0x80000000
 
 typedef enum _DPFLTR_TYPE
 {