diff --git a/samples/pdfium_test.cc b/samples/pdfium_test.cc
index 3bdd4ee..51199ea 100644
--- a/samples/pdfium_test.cc
+++ b/samples/pdfium_test.cc
@@ -438,7 +438,7 @@
         break;
 
       case OUTPUT_EMF:
-        WriteEmf(page.c_str(), name, i);
+        WriteEmf(page, name.c_str(), i);
         break;
 #endif
       case OUTPUT_PPM: