diff --git a/repository/Grafoscopio-Utils/Markdown.class.st b/repository/Grafoscopio-Utils/Markdown.class.st
index bda223a..508ec56 100644
--- a/repository/Grafoscopio-Utils/Markdown.class.st
+++ b/repository/Grafoscopio-Utils/Markdown.class.st
@@ -72,17 +72,18 @@ Markdown >> exportMetadataAsJson [
 	in '.local/share/Grafoscopio/Scripts' should be developed in the near future."
 	| output luaScript |
 	luaScript := FileLocator home / '.local/share/Brea/scripts/meta-to-json.lua'.
-	OSSUnixSubprocess new 
-		workingDirectory: self file parent fullName;
-		command: 'pandoc';
-		arguments: { '--lua-filter=', luaScript fullName . self file basename };
-		redirectStdout;
-		redirectStdin;
-		runAndWaitOnExitDo: [ :process :outString :errString |
-			output := process isSuccess 
-				ifTrue: [ outString  ]
-				ifFalse:  [ errString ]
-		].
+	Smalltalk platformName = 'unix' ifTrue: [
+		OSSUnixSubprocess new 
+			workingDirectory: self file parent fullName;
+			command: 'pandoc';
+			arguments: { '--lua-filter=', luaScript fullName . self file basename };
+			redirectStdout;
+			redirectStdin;
+			runAndWaitOnExitDo: [ :process :outString :errString |
+				output := process isSuccess 
+					ifTrue: [ outString  ]
+					ifFalse:  [ errString ]
+		]].
 	^ output correctAccentedCharacters 
 ]