diff --git a/pdfio-base-font-widths.h b/pdfio-base-font-widths.h
index f311da9..ce5d854 100644
--- a/pdfio-base-font-widths.h
+++ b/pdfio-base-font-widths.h
@@ -284,7 +284,7 @@ static short times_roman_widths[256] =
 };
 
 
-static short zapf_dingbats_widths[256] =
+static short zapfdingbats_widths[256] =
 {
   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
diff --git a/pdfio-content.c b/pdfio-content.c
index a3ee04a..3eb421b 100644
--- a/pdfio-content.c
+++ b/pdfio-content.c
@@ -1171,8 +1171,8 @@ pdfioContentTextMeasure(
       widths = times_italic_widths;
     else if (!strcmp(basefont, "Times-Roman"))
       widths = times_roman_widths;
-    else if (!strcmp(basefont, "Zapf-Dingbats"))
-      widths = zapf_dingbats_widths;
+    else if (!strcmp(basefont, "ZapfDingbats"))
+      widths = zapfdingbats_widths;
     else
       return (0.0);