diff --git a/eo/test/t-eoSymreg.cpp b/eo/test/t-eoSymreg.cpp
index 2d50fab2..d2750e17 100644
--- a/eo/test/t-eoSymreg.cpp
+++ b/eo/test/t-eoSymreg.cpp
@@ -1,4 +1,6 @@
+#ifdef _MSC_VER
 #pragma warning(disable:4786)
+#endif
 
 #include <gp/eoParseTree.h>
 #include <eoEvalFunc.h>