diff --git a/src/bin/dhcp4/config_parser.cc b/src/bin/dhcp4/config_parser.cc
index f4e85f53f7..ac4b3c69da 100644
--- a/src/bin/dhcp4/config_parser.cc
+++ b/src/bin/dhcp4/config_parser.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2010  Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2012  Internet Systems Consortium, Inc. ("ISC")
 //
 // Permission to use, copy, modify, and/or distribute this software for any
 // purpose with or without fee is hereby granted, provided that the above
@@ -162,7 +162,7 @@ public:
 
     /// @brief does nothing
     ///
-    /// This method is required for all parser. The value itself
+    /// This method is required for all parsers. The value itself
     /// is not commited anywhere. Higher level parsers are expected to
     /// use values stored in the storage, e.g. renew-timer for a given
     /// subnet is stored in subnet-specific storage. It is not commited
@@ -220,7 +220,7 @@ public:
 
     /// @brief parses parameter value
     ///
-    /// Parses configuration entry and stored it in storage. See
+    /// Parses configuration entry and stores it in storage. See
     /// \ref setStorage() for details.
     ///
     /// @param value pointer to the content of parsed values
@@ -425,7 +425,7 @@ public:
 
     /// @brief does nothing.
     ///
-    /// This method is required for all parser. The value itself
+    /// This method is required for all parsers. The value itself
     /// is not commited anywhere. Higher level parsers (for subnet) are expected
     /// to use values stored in the storage.
     virtual void commit() {}
@@ -455,7 +455,7 @@ public:
     /// @brief constructor
     Subnet4ConfigParser(const std::string& ) {
         // The parameter should always be "subnet", but we don't check here
-        // against it in case some wants to reuse this parser somewhere.
+        // against it in case someone wants to reuse this parser somewhere.
     }
 
     /// @brief parses parameter value
diff --git a/src/bin/dhcp4/dhcp4_messages.mes b/src/bin/dhcp4/dhcp4_messages.mes
index 1fe91df0a8..88b0435a7e 100644
--- a/src/bin/dhcp4/dhcp4_messages.mes
+++ b/src/bin/dhcp4/dhcp4_messages.mes
@@ -37,7 +37,7 @@ updated configuration from the BIND 10 configuration system.
 
 % DHCP4_CONFIG_START DHCPv4 server is processing the following configuration: %1
 This is a debug message that is issued every time the server receives a
-configuration. That happens start up and also when a server configuration
+configuration. That happens at start up and also when a server configuration
 change is committed by the administrator.
 
 % DHCP4_CONFIG_NEW_SUBNET A new subnet has been added to configuration: %1