diff --git a/MdeModulePkg/Universal/Variable/Pei/Variable.c b/MdeModulePkg/Universal/Variable/Pei/Variable.c
index 4716cc5124..97c86f2feb 100644
--- a/MdeModulePkg/Universal/Variable/Pei/Variable.c
+++ b/MdeModulePkg/Universal/Variable/Pei/Variable.c
@@ -884,6 +884,8 @@ PeiGetVariable (
     return EFI_INVALID_PARAMETER;
   }
 
+  VariableHeader = NULL;
+
   //
   // Find existing variable
   //
@@ -970,6 +972,8 @@ PeiGetNextVariableName (
     return EFI_INVALID_PARAMETER;
   }
 
+  VariableHeader = NULL;
+
   Status = FindVariable (VariableName, VariableGuid, &Variable, &StoreInfo);
   if (Variable.CurrPtr == NULL || Status != EFI_SUCCESS) {
     return Status;
diff --git a/SecurityPkg/VariableAuthenticated/Pei/Variable.c b/SecurityPkg/VariableAuthenticated/Pei/Variable.c
index 7ead809a3b..7ee8b88552 100644
--- a/SecurityPkg/VariableAuthenticated/Pei/Variable.c
+++ b/SecurityPkg/VariableAuthenticated/Pei/Variable.c
@@ -883,6 +883,8 @@ PeiGetVariable (
     return EFI_INVALID_PARAMETER;
   }
 
+  VariableHeader = NULL;
+
   //
   // Find existing variable
   //
@@ -969,6 +971,8 @@ PeiGetNextVariableName (
     return EFI_INVALID_PARAMETER;
   }
 
+  VariableHeader = NULL;
+
   Status = FindVariable (VariableName, VariableGuid, &Variable, &StoreInfo);
   if (Variable.CurrPtr == NULL || Status != EFI_SUCCESS) {
     return Status;