diff --git a/include/sot-dynamic/dynamic-hrp2.h b/include/sot-dynamic/dynamic-hrp2.h
index 51b1e935fa282b20c893013ceafca77985ec052b..40602047a0f67c2f94f1aba7e1cca982ea198fbf 100644
--- a/include/sot-dynamic/dynamic-hrp2.h
+++ b/include/sot-dynamic/dynamic-hrp2.h
@@ -38,7 +38,7 @@
 /* --------------------------------------------------------------------- */
 
 #if defined (WIN32) 
-#  if defined (dynamic-hrp2_EXPORTS)
+#  if defined (dynamic_hrp2_EXPORTS)
 #    define SOTDYNAMICHRP2_EXPORT __declspec(dllexport)
 #  else  
 #    define SOTDYNAMICHRP2_EXPORT __declspec(dllimport)