diff --git a/src/contrib/graphbuilderadapter.h b/src/contrib/graphbuilderadapter.h
index e07b091..9078cdf 100644
--- a/src/contrib/graphbuilderadapter.h
+++ b/src/contrib/graphbuilderadapter.h
@@ -58,8 +58,8 @@ class GraphBuilderAdapter : public EventHandler {
   struct ContainerFrame {
     ContainerFrame(void* pSequence)
         : pContainer(pSequence), pPrevKeyNode(&sequenceMarker) {}
-    ContainerFrame(void* pMap, void* PrevKeyNode)
-        : pContainer(pMap), pPrevKeyNode(PrevKeyNode) {}
+    ContainerFrame(void* pMap, void* pPreviousKeyNode)
+        : pContainer(pMap), pPrevKeyNode(pPreviousKeyNode) {}
 
     void* pContainer;
     void* pPrevKeyNode;
diff --git a/src/singledocparser.cpp b/src/singledocparser.cpp
index 3c294ca..809fd1d 100644
--- a/src/singledocparser.cpp
+++ b/src/singledocparser.cpp
@@ -167,10 +167,10 @@ void SingleDocParser::HandleBlockSequence(EventHandler& eventHandler) {
 
     // check for null
     if (!m_scanner.empty()) {
-      const Token& tnullcheck = m_scanner.peek();
-      if (tnullcheck.type == Token::BLOCK_ENTRY ||
-          tnullcheck.type == Token::BLOCK_SEQ_END) {
-        eventHandler.OnNull(tnullcheck.mark, NullAnchor);
+      const Token& nextToken = m_scanner.peek();
+      if (nextToken.type == Token::BLOCK_ENTRY ||
+          nextToken.type == Token::BLOCK_SEQ_END) {
+        eventHandler.OnNull(nextToken.mark, NullAnchor);
         continue;
       }
     }