diff --git a/Cantera/src/CVodesIntegrator.h b/Cantera/src/CVodesIntegrator.h
index 88dc18c1f..73a8516bb 100644
--- a/Cantera/src/CVodesIntegrator.h
+++ b/Cantera/src/CVodesIntegrator.h
@@ -109,6 +109,10 @@ namespace Cantera {
 
 }    // namespace
 
+#else
+
+No sundials! 
+
 #endif
 
 #endif