diff --git a/src/HTTPServer/HTTPMessage.cpp b/src/HTTPServer/HTTPMessage.cpp
index f6c0204ae..d59ca438e 100644
--- a/src/HTTPServer/HTTPMessage.cpp
+++ b/src/HTTPServer/HTTPMessage.cpp
@@ -55,7 +55,7 @@ void cHTTPMessage::AddHeader(const AString & a_Key, const AString & a_Value)
 	}
 	else if (Key == "content-length")
 	{
-		m_ContentLength = atoi(m_Headers[Key].c_str());
+		m_ContentLength = static_cast<size_t>(atol(m_Headers[Key].c_str()));
 	}
 }
 
diff --git a/src/Items/ItemBucket.h b/src/Items/ItemBucket.h
index 3a533958f..871db821c 100644
--- a/src/Items/ItemBucket.h
+++ b/src/Items/ItemBucket.h
@@ -199,16 +199,16 @@ public:
 			Vector3i   m_Pos;
 			BLOCKTYPE  m_ReplacedBlock;
 			
-			virtual bool OnNextBlock(int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, char a_EntryFace) override
+			virtual bool OnNextBlock(int a_CBBlockX, int a_CBBlockY, int a_CBBlockZ, BLOCKTYPE a_CBBlockType, NIBBLETYPE a_CBBlockMeta, char a_CBEntryFace) override
 			{
-				if (a_BlockType != E_BLOCK_AIR)
+				if (a_CBBlockType != E_BLOCK_AIR)
 				{
-					m_ReplacedBlock = a_BlockType;
-					if (!cFluidSimulator::CanWashAway(a_BlockType) && !IsBlockLiquid(a_BlockType))
+					m_ReplacedBlock = a_CBBlockType;
+					if (!cFluidSimulator::CanWashAway(a_CBBlockType) && !IsBlockLiquid(a_CBBlockType))
 					{
-						AddFaceDirection(a_BlockX, a_BlockY, a_BlockZ, (eBlockFace)a_EntryFace);  // Was an unwashawayable block, can't overwrite it!
+						AddFaceDirection(a_CBBlockX, a_CBBlockY, a_CBBlockZ, (eBlockFace)a_CBEntryFace);  // Was an unwashawayable block, can't overwrite it!
 					}
-					m_Pos.Set(a_BlockX, a_BlockY, a_BlockZ);  // (Block could be washed away, replace it)
+					m_Pos.Set(a_CBBlockX, a_CBBlockY, a_CBBlockZ);  // (Block could be washed away, replace it)
 					return true;  // Abort tracing
 				}
 				return false;
diff --git a/src/OSSupport/StackTrace.cpp b/src/OSSupport/StackTrace.cpp
index a56568457..015a53ba0 100644
--- a/src/OSSupport/StackTrace.cpp
+++ b/src/OSSupport/StackTrace.cpp
@@ -34,7 +34,7 @@ void PrintStackTrace(void)
 		// Use the backtrace() function to get and output the stackTrace:
 		// Code adapted from http://stackoverflow.com/questions/77005/how-to-generate-a-stacktrace-when-my-gcc-c-app-crashes
 		void * stackTrace[30];
-		size_t numItems = backtrace(stackTrace, ARRAYCOUNT(stackTrace));
+		int numItems = backtrace(stackTrace, ARRAYCOUNT(stackTrace));
 		backtrace_symbols_fd(stackTrace, numItems, STDERR_FILENO);
 	#endif
 }