diff --git a/clang/tools/clang-scan-deps/ClangScanDeps.cpp b/clang/tools/clang-scan-deps/ClangScanDeps.cpp
--- a/clang/tools/clang-scan-deps/ClangScanDeps.cpp
+++ b/clang/tools/clang-scan-deps/ClangScanDeps.cpp
@@ -439,6 +439,9 @@
       std::make_unique<tooling::ArgumentsAdjustingCompilations>(
           std::move(Compilations));
   ResourceDirectoryCache ResourceDirCache;
+
+  // FIXME: Adjust the resulting CompilerInvocation in DependencyScanningAction
+  // instead of parsing and adjusting the raw command-line.
   AdjustingCompilations->appendArgumentsAdjuster(
       [&ResourceDirCache](const tooling::CommandLineArguments &Args,
                           StringRef FileName) {
@@ -509,7 +512,7 @@
 #else
         AdjustedArgs.push_back("/dev/null");
 #endif
-        if (!HasMT && !HasMQ) {
+        if (!HasMT && !HasMQ && Format == ScanningOutputFormat::Make) {
           // We're interested in source dependencies of an object file.
           std::string FileNameArg;
           if (!HasMD) {
@@ -530,8 +533,6 @@
           }
         }
         AdjustedArgs.push_back("-Xclang");
-        AdjustedArgs.push_back("-Eonly");
-        AdjustedArgs.push_back("-Xclang");
         AdjustedArgs.push_back("-sys-header-deps");
         AdjustedArgs.push_back("-Wno-error");