diff --git a/Source/cmGeneratorExpressionEvaluator.cxx b/Source/cmGeneratorExpressionEvaluator.cxx
index 2ff20fcd94..8088548ea9 100644
--- a/Source/cmGeneratorExpressionEvaluator.cxx
+++ b/Source/cmGeneratorExpressionEvaluator.cxx
@@ -181,6 +181,7 @@ static const struct ConfigurationTestNode : public cmGeneratorExpressionNode
 
 #if defined(__BORLANDC__)
 # pragma warn -8008 /* condition is always true */
+# pragma warn -8066 /* unreachable code */
 // Borland gets confused about the template argument bools
 // used in if statements.
 #endif