diff --git a/libsolidity/analysis/SemVerHandler.h b/libsolidity/analysis/SemVerHandler.h
index fae0a764c..76b70c5bf 100644
--- a/libsolidity/analysis/SemVerHandler.h
+++ b/libsolidity/analysis/SemVerHandler.h
@@ -34,6 +34,9 @@ class SemVerError: dev::Exception
 {
 };
 
+#undef major
+#undef minor
+
 struct SemVerVersion
 {
 	unsigned numbers[3];