diff --git a/Sources/XcodeCompilationDatabaseCore/XcodeCompilationDatabase.swift b/Sources/XcodeCompilationDatabaseCore/XcodeCompilationDatabase.swift
index a1cb5c0..d9c5ee2 100644
--- a/Sources/XcodeCompilationDatabaseCore/XcodeCompilationDatabase.swift
+++ b/Sources/XcodeCompilationDatabaseCore/XcodeCompilationDatabase.swift
@@ -25,6 +25,7 @@ public func shlex(_ input: String) -> [String] {
             escape = false;
             accumulator += str
         } else if str == "\\" {
+            accumulator += str
             escape = true;
         } else if (quote == unitQuote && str == singleQuote) ||
                    (quote == unitQuote && str == unitQuote) {