diff --git a/libsolidity/analysis/SyntaxChecker.cpp b/libsolidity/analysis/SyntaxChecker.cpp
index 74fa8d458..ba973bffa 100644
--- a/libsolidity/analysis/SyntaxChecker.cpp
+++ b/libsolidity/analysis/SyntaxChecker.cpp
@@ -303,7 +303,9 @@ bool SyntaxChecker::visit(FunctionDefinition const& _function)
 		);
 	}
 
-	if (!_function.isImplemented() && !_function.modifiers().empty())
+	if (m_isInterface && !_function.modifiers().empty())
+		m_errorReporter.syntaxError(_function.location(), "Functions in interfaces cannot have modifiers.");
+	else if (!_function.isImplemented() && !_function.modifiers().empty())
 		m_errorReporter.syntaxError(_function.location(), "Functions without implementation cannot have modifiers.");
 
 	return true;
diff --git a/test/libsolidity/syntaxTests/nameAndTypeResolution/588_interface_function_modifier.sol b/test/libsolidity/syntaxTests/nameAndTypeResolution/588_interface_function_modifier.sol
new file mode 100644
index 000000000..b94334d38
--- /dev/null
+++ b/test/libsolidity/syntaxTests/nameAndTypeResolution/588_interface_function_modifier.sol
@@ -0,0 +1,6 @@
+interface I {
+  function f() external m pure returns (uint);
+  modifier m() { _; }
+}
+// ----
+// SyntaxError: (16-60): Functions in interfaces cannot have modifiers.