diff --git a/ndn-cpp/c/encoding/binary-xml-forwarding-entry.h b/ndn-cpp/c/encoding/binary-xml-forwarding-entry.h
index 4a23371..b08f292 100644
--- a/ndn-cpp/c/encoding/binary-xml-forwarding-entry.h
+++ b/ndn-cpp/c/encoding/binary-xml-forwarding-entry.h
@@ -5,14 +5,14 @@
  */
 
 #ifndef NDN_BINARY_XML_FORWARDING_ENTRY_H
-#define	NDN_BINARY_XML_FORWARDING_ENTRY_H
+#define NDN_BINARY_XML_FORWARDING_ENTRY_H
 
 #include "../errors.h"
 #include "../forwarding-entry.h"
 #include "binary-xml-encoder.h"
 #include "binary-xml-decoder.h"
 
-#ifdef	__cplusplus
+#ifdef __cplusplus
 extern "C" {
 #endif
 
@@ -32,7 +32,7 @@
  */
 ndn_Error ndn_decodeBinaryXmlForwardingEntry(struct ndn_ForwardingEntry *forwardingEntry, struct ndn_BinaryXmlDecoder *decoder);
 
-#ifdef	__cplusplus
+#ifdef __cplusplus
 }
 #endif
 
diff --git a/ndn-cpp/c/name.c b/ndn-cpp/c/name.c
index d6864e9..355636d 100644
--- a/ndn-cpp/c/name.c
+++ b/ndn-cpp/c/name.c
@@ -37,11 +37,11 @@
 
 int ndn_Name_match(struct ndn_Name *self, struct ndn_Name *name)
 {
-	// This name is longer than the name we are checking it against.
-	if (self->nComponents > name->nComponents)
+  // This name is longer than the name we are checking it against.
+  if (self->nComponents > name->nComponents)
     return 0;
 
-	// Check if at least one of given components doesn't match.
+  // Check if at least one of given components doesn't match.
   size_t i;
   for (i = 0; i < self->nComponents; ++i) {
     struct ndn_NameComponent *selfComponent = self->components + i;
@@ -52,5 +52,5 @@
       return 0;
   }
 
-	return 1;
+  return 1;
 }
diff --git a/ndn-cpp/c/util/blob.h b/ndn-cpp/c/util/blob.h
index 18bcd03..8d1f784 100644
--- a/ndn-cpp/c/util/blob.h
+++ b/ndn-cpp/c/util/blob.h
@@ -5,11 +5,11 @@
  */
 
 #ifndef NDN_BLOB_H
-#define	NDN_BLOB_H
+#define NDN_BLOB_H
 
 #include <ndn-cpp/c/common.h>
 
-#ifdef	__cplusplus
+#ifdef __cplusplus
 extern "C" {
 #endif
 
@@ -33,7 +33,7 @@
   self->length = length;
 }
 
-#ifdef	__cplusplus
+#ifdef __cplusplus
 }
 #endif
 
diff --git a/ndn-cpp/encoding/oid.cpp b/ndn-cpp/encoding/oid.cpp
index 236e420..db1fbc3 100644
--- a/ndn-cpp/encoding/oid.cpp
+++ b/ndn-cpp/encoding/oid.cpp
@@ -26,7 +26,7 @@
 
     pos = str.find_first_of('.', pos);
     if(pos == string::npos)
-	    break;
+      break;
 
     oid_.push_back(atoi(str.substr(ppos, pos - ppos).c_str()));
 
diff --git a/ndn-cpp/interest.cpp b/ndn-cpp/interest.cpp
index ceeffcd..92fe972 100644
--- a/ndn-cpp/interest.cpp
+++ b/ndn-cpp/interest.cpp
@@ -52,8 +52,8 @@
 string 
 Exclude::toUri() const
 {
-	if (entries_.size() == 0)
-		return "";
+  if (entries_.size() == 0)
+    return "";
 
   ostringstream result;
   for (unsigned i = 0; i < entries_.size(); ++i) {
diff --git a/ndn-cpp/name.cpp b/ndn-cpp/name.cpp
index c9b5e7f..6f42635 100644
--- a/ndn-cpp/name.cpp
+++ b/ndn-cpp/name.cpp
@@ -323,7 +323,7 @@
 bool 
 Name::equals(const Name& name) const
 {
-	if (components_.size() != name.components_.size())
+  if (components_.size() != name.components_.size())
     return false;
 
   for (size_t i = 0; i < components_.size(); ++i) {
@@ -331,7 +331,7 @@
       return false;
   }
 
-	return true;
+  return true;
 }
 
 bool 
@@ -339,17 +339,17 @@
 {
   // Imitate ndn_Name_match.
   
-	// This name is longer than the name we are checking it against.
-	if (components_.size() > name.components_.size())
+  // This name is longer than the name we are checking it against.
+  if (components_.size() > name.components_.size())
     return false;
 
-	// Check if at least one of given components doesn't match.
+  // Check if at least one of given components doesn't match.
   for (size_t i = 0; i < components_.size(); ++i) {
     if (*components_[i].getValue() != *name.components_[i].getValue())
       return false;
   }
 
-	return true;
+  return true;
 }
 
 void 
diff --git a/ndn-cpp/node.cpp b/ndn-cpp/node.cpp
index c145d50..1ce715c 100644
--- a/ndn-cpp/node.cpp
+++ b/ndn-cpp/node.cpp
@@ -306,17 +306,17 @@
   
   int iResult = -1;
     
-	for (size_t i = 0; i < pendingInterestTable_.size(); ++i) {
-		if (ndn_Interest_matchesName((struct ndn_Interest *)&pendingInterestTable_[i]->getInterestStruct(), &nameStruct)) {
+  for (size_t i = 0; i < pendingInterestTable_.size(); ++i) {
+    if (ndn_Interest_matchesName((struct ndn_Interest *)&pendingInterestTable_[i]->getInterestStruct(), &nameStruct)) {
       if (iResult < 0 || 
           pendingInterestTable_[i]->getInterestStruct().name.nComponents > 
           pendingInterestTable_[iResult]->getInterestStruct().name.nComponents)
         // Update to the longer match.
         iResult = i;
     }
-	}
+  }
     
-	return iResult;
+  return iResult;
 }
   
 Node::RegisteredPrefix*
@@ -324,17 +324,17 @@
 {
   int iResult = -1;
     
-	for (size_t i = 0; i < registeredPrefixTable_.size(); ++i) {
-		if (registeredPrefixTable_[i]->getPrefix()->match(name)) {
+  for (size_t i = 0; i < registeredPrefixTable_.size(); ++i) {
+    if (registeredPrefixTable_[i]->getPrefix()->match(name)) {
       if (iResult < 0 || 
           registeredPrefixTable_[i]->getPrefix()->getComponentCount() > registeredPrefixTable_[iResult]->getPrefix()->getComponentCount())
         // Update to the longer match.
         iResult = i;
     }
-	}
+  }
     
   if (iResult >= 0)
-  	return registeredPrefixTable_[iResult].get();
+    return registeredPrefixTable_[iResult].get();
   else
     return 0;
 }
diff --git a/ndn-cpp/util/changed-event.hpp b/ndn-cpp/util/changed-event.hpp
index 71be366..e20f3d5 100644
--- a/ndn-cpp/util/changed-event.hpp
+++ b/ndn-cpp/util/changed-event.hpp
@@ -6,7 +6,7 @@
  */
 
 #ifndef NDN_CHANGED_EVENT_HPP
-#define	NDN_CHANGED_EVENT_HPP
+#define NDN_CHANGED_EVENT_HPP
 
 #include <vector>
 #include <ndn-cpp/common.hpp>
diff --git a/ndn-cpp/util/logging.hpp b/ndn-cpp/util/logging.hpp
index f1afe72..b668133 100644
--- a/ndn-cpp/util/logging.hpp
+++ b/ndn-cpp/util/logging.hpp
@@ -7,7 +7,7 @@
  */
 
 #ifndef NDN_LOGGING_HPP
-#define	NDN_LOGGING_HPP
+#define NDN_LOGGING_HPP
 
 #include <ndn-cpp//common.hpp>