diff --git a/code/nel/include/nel/misc/sha1.h b/code/nel/include/nel/misc/sha1.h
index 87edba44c..92670921b 100644
--- a/code/nel/include/nel/misc/sha1.h
+++ b/code/nel/include/nel/misc/sha1.h
@@ -51,18 +51,18 @@ struct CHashKey
 		else if (str.size() == 40)
 		{
 			HashKeyString.clear();
-			for(uint i = 0; i < str.size(); i+=2)
+			for (size_t i = 0; i < str.size(); i += 2)
 			{
 				uint8 val;
-				if (isdigit((unsigned char)str[i+0]))
-					val = str[i+0]-'0';
+				if (isdigit((unsigned char)str[i + 0]))
+					val = str[i + 0] - '0';
 				else
-					val = 10+tolower(str[i+0])-'a';
+					val = 10 + tolower(str[i + 0]) - 'a';
 				val *= 16;
-				if (isdigit((unsigned char)str[i+1]))
-					val += str[i+1]-'0';
+				if (isdigit((unsigned char)str[i + 1]))
+					val += str[i + 1] - '0';
 				else
-					val += 10+tolower(str[i+1])-'a';
+					val += 10 + tolower(str[i + 1]) - 'a';
 
 				HashKeyString += val;
 			}
diff --git a/code/nel/src/misc/file.cpp b/code/nel/src/misc/file.cpp
index 89af07129..24222bdfe 100644
--- a/code/nel/src/misc/file.cpp
+++ b/code/nel/src/misc/file.cpp
@@ -558,7 +558,7 @@ bool		CIFile::seek (sint32 offset, IStream::TSeekOrigin origin) const
 		return true;
 
 	// seek in the file. NB: if not in bigfile, _BigFileOffset==0.
-	if (nlfseek64(_F, _BigFileOffset+_ReadPos, SEEK_SET) != 0)
+	if (nlfseek64(_F, (sint64)_BigFileOffset + _ReadPos, SEEK_SET) != 0)
 		return false;
 	return true;
 }