diff --git a/code/nel/tools/pipeline/plugin_max/pipeline_plugin_max.cpp b/code/nel/tools/pipeline/plugin_max/pipeline_plugin_max.cpp
index a23087083..4cc110b05 100644
--- a/code/nel/tools/pipeline/plugin_max/pipeline_plugin_max.cpp
+++ b/code/nel/tools/pipeline/plugin_max/pipeline_plugin_max.cpp
@@ -29,6 +29,9 @@
 #include "pipeline_plugin_max.h"
 
 // STL includes
+#ifdef NL_OS_WINDOWS
+#	include <windows.h>
+#endif
 
 // NeL includes
 #include "nel/misc/dynloadlib.h"
diff --git a/code/nel/tools/pipeline/plugin_nel/pipeline_plugin_nel.cpp b/code/nel/tools/pipeline/plugin_nel/pipeline_plugin_nel.cpp
index 78efe7a2f..8da3f3cff 100644
--- a/code/nel/tools/pipeline/plugin_nel/pipeline_plugin_nel.cpp
+++ b/code/nel/tools/pipeline/plugin_nel/pipeline_plugin_nel.cpp
@@ -29,6 +29,9 @@
 #include "pipeline_plugin_nel.h"
 
 // STL includes
+#ifdef NL_OS_WINDOWS
+#	include <windows.h>
+#endif
 
 // NeL includes
 #include "nel/misc/dynloadlib.h"