diff --git a/src/cmd/page/pdfprolog.c b/src/cmd/page/pdfprolog.c
index de51c062..3b6cbcd7 100644
--- a/src/cmd/page/pdfprolog.c
+++ b/src/cmd/page/pdfprolog.c
@@ -16,5 +16,4 @@
 "  } if\n"
 "} bind def\n"
 "\n"
-"GS_PDF_ProcSet begin\n"
-"pdfdict begin\n"
+"runpdfbegin\n"
diff --git a/src/cmd/page/pdfprolog.ps b/src/cmd/page/pdfprolog.ps
index 681e0587..a57e20b1 100644
--- a/src/cmd/page/pdfprolog.ps
+++ b/src/cmd/page/pdfprolog.ps
@@ -16,5 +16,4 @@
   } if
 } bind def
 
-GS_PDF_ProcSet begin
-pdfdict begin
+runpdfbegin