diff --git a/lib/Driver/ToolChains/Gnu.cpp b/lib/Driver/ToolChains/Gnu.cpp
index 595285e087fe3f9619f4fa2d8bc5a3ea2cafbc97..549e24cbd2b32cc246c969862cf9d2f33cc81c35 100644
--- a/lib/Driver/ToolChains/Gnu.cpp
+++ b/lib/Driver/ToolChains/Gnu.cpp
@@ -2173,6 +2173,7 @@ bool Generic_GCC::GCCInstallationDetector::ScanGentooGccConfig(
     SmallVector<StringRef, 2> Lines;
     File.get()->getBuffer().split(Lines, "\n");
     for (StringRef Line : Lines) {
+      Line = Line.trim();
       // CURRENT=triple-version
       if (Line.consume_front("CURRENT=")) {
         const std::pair<StringRef, StringRef> ActiveVersion =