diff --git a/ShellPkg/DynamicCommand/DpDynamicCommand/Dp.c b/ShellPkg/DynamicCommand/DpDynamicCommand/Dp.c
index fe85937f55..d8451dbf59 100644
--- a/ShellPkg/DynamicCommand/DpDynamicCommand/Dp.c
+++ b/ShellPkg/DynamicCommand/DpDynamicCommand/Dp.c
@@ -674,6 +674,24 @@ InitCumulativeData (
   }
 }
 
+/**
+  Initialize the Summary data.
+
+**/
+VOID
+InitSummaryData (
+  VOID
+  )
+{
+  SummaryData.NumTrace      = 0;
+  SummaryData.NumProfile    = 0 ;
+  SummaryData.NumIncomplete = 0;
+  SummaryData.NumSummary    = 0;
+  SummaryData.NumHandles    = 0;
+  SummaryData.NumPEIMs      = 0;
+  SummaryData.NumGlobal     = 0;
+}
+
 /**
   Dump performance data.
   
@@ -819,6 +837,11 @@ RunDp (
   //
   InitCumulativeData ();
 
+  //
+  // Initialize the Summary data.
+  //
+  InitSummaryData ();
+
   //
   // Init the custom cumulative data.
   //