diff --git a/Source/WebKit/UIProcess/API/glib/WebKitWebContext.cpp b/Source/WebKit/UIProcess/API/glib/WebKitWebContext.cpp

index af43f9acfd24..3ac762417a98 100644

--- a/Source/WebKit/UIProcess/API/glib/WebKitWebContext.cpp

+++ b/Source/WebKit/UIProcess/API/glib/WebKitWebContext.cpp

@@ -397,7 +397,7 @@ static void webkitWebContextConstructed(GObject* object)

     configuration.setProcessSwapsOnNavigation(priv->psonEnabled);

     if (!priv->psonEnabled) {

         const char* useSingleWebProcess = getenv("WEBKIT_USE_SINGLE_WEB_PROCESS");

-        if (useSingleWebProcess && strcmp(useSingleWebProcess, "0"))

+        if ((useSingleWebProcess && strcmp(useSingleWebProcess, "0")) || !g_strcmp0(g_get_prgname(), "evolution"))

             configuration.setUsesSingleWebProcess(true);

     }