diff --git a/AST.cpp b/AST.cpp
index 367c88a2b..59a7b61c2 100644
--- a/AST.cpp
+++ b/AST.cpp
@@ -124,11 +124,6 @@ FunctionDefinition const* ContractDefinition::getConstructor() const
 	return nullptr;
 }
 
-FixedHash<4> ContractDefinition::getConstructorsInterface() const
-{
-	return FixedHash<4>(dev::sha3(getConstructor()->externalSignature()));
-}
-
 FunctionDefinition const* ContractDefinition::getFallbackFunction() const
 {
 	for (ContractDefinition const* contract: getLinearizedBaseContracts())
diff --git a/AST.h b/AST.h
index 5620fa5e4..c9ad6447e 100644
--- a/AST.h
+++ b/AST.h
@@ -281,9 +281,6 @@ public:
 	/// Returns the fallback function or nullptr if no fallback function was specified.
 	FunctionDefinition const* getFallbackFunction() const;
 
-	///@returns hash of the constructor
-	FixedHash<4> getConstructorsInterface() const;
-
 private:
 	/// Checks that two functions defined in this contract with the same name have different
 	/// arguments and that there is at most one constructor.