diff --git a/libyul/AsmPrinter.cpp b/libyul/AsmPrinter.cpp
index a3d9eafc3..71151a0cf 100644
--- a/libyul/AsmPrinter.cpp
+++ b/libyul/AsmPrinter.cpp
@@ -266,7 +266,7 @@ string AsmPrinter::formatTypedName(TypedName _variable) const
 
 string AsmPrinter::appendTypeName(YulString _type) const
 {
-	if (m_yul)
+	if (m_yul && !_type.empty())
 		return ":" + _type.str();
 	return "";
 }