diff --git a/poppler/PSOutputDev.cc b/poppler/PSOutputDev.cc
index 620a322..ba14398 100644
--- a/poppler/PSOutputDev.cc
+++ b/poppler/PSOutputDev.cc
@@ -2529,7 +2529,7 @@
 
 void PSOutputDev::updateFontMaxValidGlyph(GfxFont *font, int maxValidGlyph) {
   if (maxValidGlyph >= 0 && font->getName()) {
-    auto& fontMaxValidGlyph = this->fontMaxValidGlyph[font->getName()->toStr()];
+    auto& fontMaxValidGlyph = perFontMaxValidGlyph[font->getName()->toStr()];
     if (fontMaxValidGlyph < maxValidGlyph) {
       fontMaxValidGlyph = maxValidGlyph;
     }
@@ -5071,7 +5071,7 @@
   if (!(font = state->getFont())) {
     return;
   }
-  maxGlyphInt = (font->getName() ? fontMaxValidGlyph[font->getName()->toStr()] : 0);
+  maxGlyphInt = (font->getName() ? perFontMaxValidGlyph[font->getName()->toStr()] : 0);
   if (maxGlyphInt < 0) maxGlyphInt = 0;
   maxGlyph = (CharCode) maxGlyphInt;
   wMode = font->getWMode();
diff --git a/poppler/PSOutputDev.h b/poppler/PSOutputDev.h
index 2822bfd..e794938 100644
--- a/poppler/PSOutputDev.h
+++ b/poppler/PSOutputDev.h
@@ -479,7 +479,7 @@
   int fontIDSize;		// size of fontIDs array
   std::set<int> resourceIDs;	// list of object IDs of objects containing Resources we've already set up
   std::unordered_set<std::string> fontNames; // all used font names
-  std::unordered_map<std::string, int> fontMaxValidGlyph; // max valid glyph of each font
+  std::unordered_map<std::string, int> perFontMaxValidGlyph; // max valid glyph of each font
   PST1FontName *t1FontNames;	// font names for Type 1/1C fonts
   int t1FontNameLen;		// number of entries in t1FontNames array
   int t1FontNameSize;		// size of t1FontNames array