diff --git a/code/nel/src/misc/displayer.cpp b/code/nel/src/misc/displayer.cpp
index 798a4f80a..8feaa9358 100644
--- a/code/nel/src/misc/displayer.cpp
+++ b/code/nel/src/misc/displayer.cpp
@@ -495,15 +495,30 @@ void CFileDisplayer::doDisplay ( const CLog::TDisplayInfo& args, const char *mes
 		if (_NeedHeader)
 		{
 			const char *hs = HeaderString();
-			fwrite (hs, strlen (hs), 1, _FilePointer);
+
+			if (fwrite(hs, strlen(hs), 1, _FilePointer) != 1)
+			{
+				printf("Unable to write header: %s\n", hs);
+			}
+
 			_NeedHeader = false;
 		}
 
-		if(!str.empty())
-			fwrite (str.c_str(), str.size(), 1, _FilePointer);
+		if (!str.empty())
+		{
+			if (fwrite(str.c_str(), str.size(), 1, _FilePointer) != 1)
+			{
+				printf("Unable to write string: %s\n", str.c_str());
+			}
+		}
 
-		if(!args.CallstackAndLog.empty())
-			fwrite (args.CallstackAndLog.c_str(), args.CallstackAndLog.size (), 1, _FilePointer);
+		if (!args.CallstackAndLog.empty())
+		{
+			if (fwrite(args.CallstackAndLog.c_str(), args.CallstackAndLog.size(), 1, _FilePointer) != 1)
+			{
+				printf("Unable to write call stack: %s\n", args.CallstackAndLog.c_str());
+			}
+		}
 
 		fflush (_FilePointer);
 	}
diff --git a/code/ryzom/client/src/r2/dmc/client_edition_module.cpp b/code/ryzom/client/src/r2/dmc/client_edition_module.cpp
index 37caebc3e..649996256 100644
--- a/code/ryzom/client/src/r2/dmc/client_edition_module.cpp
+++ b/code/ryzom/client/src/r2/dmc/client_edition_module.cpp
@@ -1652,7 +1652,11 @@ void CClientEditionModule::saveUserComponentFile(const std::string& filename, bo
 				FILE* output = nlfopen(uncompressedName, "wb");
 				if (output)
 				{
-					fwrite(component->UncompressedData, sizeof(char) , component->UncompressedDataLength, output);
+					if (fwrite(component->UncompressedData, sizeof(char), component->UncompressedDataLength, output) != component->UncompressedDataLength)
+					{
+						nlwarning("Unable to write %s", component->UncompressedData);
+					}
+
 					fclose(output);
 				}
 			}