diff --git a/MdePkg/Library/BaseMemoryLib/MemLibGeneric.c b/MdePkg/Library/BaseMemoryLib/MemLibGeneric.c
index 1e3c4c3f13..a977c4aadc 100644
--- a/MdePkg/Library/BaseMemoryLib/MemLibGeneric.c
+++ b/MdePkg/Library/BaseMemoryLib/MemLibGeneric.c
@@ -162,9 +162,10 @@ InternalMemScanMem8 (
 
   Pointer = (CONST UINT8*)Buffer;
   do {
-    if (*(Pointer++) == Value) {
-      return --Pointer;
+    if (*Pointer == Value) {
+      return Pointer;
     }
+    ++Pointer;
   } while (--Length != 0);
   return NULL;
 }
@@ -192,9 +193,10 @@ InternalMemScanMem16 (
 
   Pointer = (CONST UINT16*)Buffer;
   do {
-    if (*(Pointer++) == Value) {
-      return --Pointer;
+    if (*Pointer == Value) {
+      return Pointer;
     }
+    ++Pointer;
   } while (--Length != 0);
   return NULL;
 }
@@ -222,9 +224,10 @@ InternalMemScanMem32 (
 
   Pointer = (CONST UINT32*)Buffer;
   do {
-    if (*(Pointer++) == Value) {
-      return --Pointer;
+    if (*Pointer == Value) {
+      return Pointer;
     }
+    ++Pointer;
   } while (--Length != 0);
   return NULL;
 }
@@ -252,9 +255,10 @@ InternalMemScanMem64 (
 
   Pointer = (CONST UINT64*)Buffer;
   do {
-    if (*(Pointer++) == Value) {
-      return --Pointer;
+    if (*Pointer == Value) {
+      return Pointer;
     }
+    ++Pointer;
   } while (--Length != 0);
   return NULL;
 }