diff --git a/test/main.h b/test/main.h
index adf4adb31..b3fa68476 100644
--- a/test/main.h
+++ b/test/main.h
@@ -61,7 +61,7 @@
 #endif
 
 // shuts down ICC's remark #593: variable "XXX" was set but never used
-#define TEST_SET_BUT_UNUSED_VARIABLE(X) X = X + 0;
+#define TEST_SET_BUT_UNUSED_VARIABLE(X) EIGEN_UNUSED_VARIABLE(X)
 
 // the following file is automatically generated by cmake
 #include "split_test_helper.h"