diff --git a/libcef/common/cef_switches.cc b/libcef/common/cef_switches.cc
index bb47e4622..20f9e7d6b 100644
--- a/libcef/common/cef_switches.cc
+++ b/libcef/common/cef_switches.cc
@@ -137,4 +137,10 @@ const char kFrameworkDirPath[] = "framework-dir-path";
 const char kMainBundlePath[] = "main-bundle-path";
 #endif
 
+#if !defined(OS_WIN)
+// Renderer process that runs the non-PPAPI PDF plugin.
+// This is defined in content/public/common/content_switches.h for Windows.
+const char kPdfRenderer[] = "pdf-renderer";
+#endif
+
 }  // namespace switches
diff --git a/libcef/common/cef_switches.h b/libcef/common/cef_switches.h
index ff8f96a0b..19bac38f9 100644
--- a/libcef/common/cef_switches.h
+++ b/libcef/common/cef_switches.h
@@ -62,6 +62,10 @@ extern const char kFrameworkDirPath[];
 extern const char kMainBundlePath[];
 #endif
 
+#if !defined(OS_WIN)
+extern const char kPdfRenderer[];
+#endif
+
 }  // namespace switches
 
 #endif  // CEF_LIBCEF_COMMON_CEF_SWITCHES_H_