diff --git a/libdevcore/Common.h b/libdevcore/Common.h
index 4ed4e4365..f1d35bbc7 100644
--- a/libdevcore/Common.h
+++ b/libdevcore/Common.h
@@ -45,7 +45,6 @@
 #pragma warning(push)
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wunused-parameter"
-#pragma GCC diagnostic ignored "-fpermissive"
 #include <boost/version.hpp>
 #if (BOOST_VERSION == 105800)
 	#include "boost_multiprecision_number_compare_bug_workaround.hpp"
diff --git a/libwhisper/Common.h b/libwhisper/Common.h
index deb13d111..c05ac34ca 100644
--- a/libwhisper/Common.h
+++ b/libwhisper/Common.h
@@ -58,8 +58,8 @@ enum WhisperPacket
 	PacketCount
 };
 
-enum { TopicBloomFilterSize = 64 };
-enum { WhisperProtocolVersion = 3 };
+const int TopicBloomFilterSize = 64;
+const int WhisperProtocolVersion = 3;
 
 using AbridgedTopic = FixedHash<4>;
 using Topic = h256;