diff --git a/src/generic/printps.cpp b/src/generic/printps.cpp
index 0a80f46a40..a3b15e02c3 100644
--- a/src/generic/printps.cpp
+++ b/src/generic/printps.cpp
@@ -227,7 +227,7 @@ bool wxPostScriptPrintPreview::Print(bool interactive)
 
 void wxPostScriptPrintPreview::DetermineScaling(void)
 {
-    char *paperType = wxThePrintSetupData->GetPaperName();
+    const char *paperType = wxThePrintSetupData->GetPaperName();
     if (!paperType)
       paperType = "A4 210 x 297 mm";