diff --git a/configure.ac b/configure.ac
index d9ed86f6fc..905acd573c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -154,7 +154,7 @@ use_pkgconfig=yes
 case $host in
   *mingw*)
 
-     #pkgconfig does more harm than good with mingw
+     #pkgconfig does more harm than good with MinGW
      use_pkgconfig=no
 
      TARGET_OS=windows
@@ -298,7 +298,7 @@ if test x$use_hardening != xno; then
     AX_CHECK_COMPILE_FLAG([-fno-stack-protector],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fno-stack-protector"])
     AX_CHECK_COMPILE_FLAG([-fstack-protector-all],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fstack-protector-all"])
 
-    # -pie will link successfully with mingw, but it's unsupported and leads to undeterministic binaries
+    # -pie will link successfully with MinGW, but it's unsupported and leads to undeterministic binaries
     AX_CHECK_LINK_FLAG([[-pie]], [HARDENED_LDFLAGS="$HARDENED_LDFLAGS -pie"])
   fi
 
diff --git a/src/chainparams.h b/src/chainparams.h
index ce3c14306d..3f99b7eb06 100644
--- a/src/chainparams.h
+++ b/src/chainparams.h
@@ -68,7 +68,7 @@ public:
     virtual const vector<CAddress>& FixedSeeds() const = 0;
     int RPCPort() const { return nRPCPort; }
 protected:
-    CChainParams() {};
+    CChainParams() {}
 
     uint256 hashGenesisBlock;
     MessageStartChars pchMessageStart;
diff --git a/src/net.h b/src/net.h
index c4dd2d8a24..51c3dab8f3 100644
--- a/src/net.h
+++ b/src/net.h
@@ -313,7 +313,7 @@ public:
     unsigned int GetTotalRecvSize()
     {
         unsigned int total = 0;
-        BOOST_FOREACH(const CNetMessage &msg, vRecvMsg) 
+        BOOST_FOREACH(const CNetMessage &msg, vRecvMsg)
             total += msg.vRecv.size() + 24;
         return total;
     }