diff --git a/src/docbookvisitor.cpp b/src/docbookvisitor.cpp
index c748162..526ed49 100644
--- a/src/docbookvisitor.cpp
+++ b/src/docbookvisitor.cpp
@@ -81,7 +81,7 @@ void DocbookDocVisitor::visit(DocSymbol *s)
   }
   else
   {
-    err("DocBook: non supported HTML-entity found: %s\n",HtmlEntityMapper::instance()->html(s->symbol()));
+    err("DocBook: non supported HTML-entity found: %s\n",HtmlEntityMapper::instance()->html(s->symbol(),TRUE));
   }
 }
 
diff --git a/src/htmldocvisitor.cpp b/src/htmldocvisitor.cpp
index 647007b..f6878b9 100644
--- a/src/htmldocvisitor.cpp
+++ b/src/htmldocvisitor.cpp
@@ -190,7 +190,7 @@ void HtmlDocVisitor::visit(DocSymbol *s)
   }
   else
   {
-    err("HTML: non supported HTML-entity found: %s\n",HtmlEntityMapper::instance()->html(s->symbol()));
+    err("HTML: non supported HTML-entity found: %s\n",HtmlEntityMapper::instance()->html(s->symbol(),TRUE));
   }
 }
 
diff --git a/src/htmlentity.cpp b/src/htmlentity.cpp
index 7f07b57..c7ff1da 100644
--- a/src/htmlentity.cpp
+++ b/src/htmlentity.cpp
@@ -354,23 +354,41 @@ void HtmlEntityMapper::deleteInstance()
 /*! @brief Access routine to the UTF8 code of the HTML entity
  *
  * @param symb Code of the requested HTML entity
+ * @param useInPrintf If TRUE the result will be escaped such that it can be
+ *                    used in a printf string pattern
  * @return the UTF8 code of the HTML entity,
  *         in case the UTF code is unknown \c NULL is returned.
  */
-const char *HtmlEntityMapper::utf8(DocSymbol::SymType symb) const
+const char *HtmlEntityMapper::utf8(DocSymbol::SymType symb,bool useInPrintf) const
 {
-  return g_htmlEntities[symb].UTF8;
+  if (useInPrintf && symb==DocSymbol::Sym_Percent)
+  {
+    return "%%"; // escape for printf
+  }
+  else
+  {
+    return g_htmlEntities[symb].UTF8;
+  }
 }
 
 /*! @brief Access routine to the html code of the HTML entity
  *
- * @param symb Code of the requested HTML entity
- * @return the html of the HTML entity,
+ * @param symb        Code of the requested HTML entity
+ * @param useInPrintf If TRUE the result will be escaped such that it can be
+ *                    used in a printf string pattern
+ * @return the html representation of the HTML entity,
  *         in case the html code is unknown \c NULL is returned.
  */
-const char *HtmlEntityMapper::html(DocSymbol::SymType symb) const
+const char *HtmlEntityMapper::html(DocSymbol::SymType symb,bool useInPrintf) const
 {
-  return g_htmlEntities[symb].html;
+  if (useInPrintf && symb==DocSymbol::Sym_Percent)
+  {
+    return "%%"; // escape for printf
+  }
+  else
+  {
+    return g_htmlEntities[symb].html;
+  }
 }
 
 /*! @brief Access routine to the XML code of the HTML entity
diff --git a/src/htmlentity.h b/src/htmlentity.h
index b92eb1d..9cebeb3 100644
--- a/src/htmlentity.h
+++ b/src/htmlentity.h
@@ -27,8 +27,8 @@ class HtmlEntityMapper
     static HtmlEntityMapper *instance();
     static void deleteInstance();
     DocSymbol::SymType name2sym(const QCString &symName) const;
-    const char *utf8(DocSymbol::SymType symb) const;
-    const char *html(DocSymbol::SymType symb) const;
+    const char *utf8(DocSymbol::SymType symb,bool useInPrintf=FALSE) const;
+    const char *html(DocSymbol::SymType symb,bool useInPrintf=FALSE) const;
     const char *xml(DocSymbol::SymType symb) const;
     const char *docbook(DocSymbol::SymType symb) const;
     const char *latex(DocSymbol::SymType symb) const;
diff --git a/src/latexdocvisitor.cpp b/src/latexdocvisitor.cpp
index c2c884b..aefcac3 100644
--- a/src/latexdocvisitor.cpp
+++ b/src/latexdocvisitor.cpp
@@ -154,7 +154,7 @@ void LatexDocVisitor::visit(DocSymbol *s)
   }
   else
   {
-    err("LaTeX: non supported HTML-entity found: %s\n",HtmlEntityMapper::instance()->html(s->symbol()));
+    err("LaTeX: non supported HTML-entity found: %s\n",HtmlEntityMapper::instance()->html(s->symbol(),TRUE));
   }
 }
 
diff --git a/src/perlmodgen.cpp b/src/perlmodgen.cpp
index 276313c..7fa0153 100644
--- a/src/perlmodgen.cpp
+++ b/src/perlmodgen.cpp
@@ -606,7 +606,7 @@ void PerlModDocVisitor::visit(DocSymbol *sy)
   }
   else
   {
-    err("perl: non supported HTML-entity found: %s\n",HtmlEntityMapper::instance()->html(sy->symbol()));
+    err("perl: non supported HTML-entity found: %s\n",HtmlEntityMapper::instance()->html(sy->symbol(),TRUE));
   }
 }
 
diff --git a/src/printdocvisitor.h b/src/printdocvisitor.h
index 7a077e9..ee4104e 100644
--- a/src/printdocvisitor.h
+++ b/src/printdocvisitor.h
@@ -57,21 +57,14 @@ class PrintDocVisitor : public DocVisitor
     void visit(DocSymbol *s)
     {
       indent_leaf();
-      const char *res = HtmlEntityMapper::instance()->utf8(s->symbol());
+      const char *res = HtmlEntityMapper::instance()->utf8(s->symbol(),TRUE);
       if (res)
       {
-        if (qstrcmp(res,"%")==0)
-        {
-          printf("%%");
-        }
-        else
-        {
-          printf("%s",res);
-        }
+        printf("%s",res);
       }
       else
       {
-        printf("print: non supported HTML-entity found: %s\n",HtmlEntityMapper::instance()->html(s->symbol()));
+        printf("print: non supported HTML-entity found: %s\n",HtmlEntityMapper::instance()->html(s->symbol(),TRUE));
       }
     }
     void visit(DocURL *u)
diff --git a/src/rtfdocvisitor.cpp b/src/rtfdocvisitor.cpp
index 2b60d5b..05c8247 100644
--- a/src/rtfdocvisitor.cpp
+++ b/src/rtfdocvisitor.cpp
@@ -129,7 +129,7 @@ void RTFDocVisitor::visit(DocSymbol *s)
   }
   else
   {
-    err("RTF: non supported HTML-entity found: %s\n",HtmlEntityMapper::instance()->html(s->symbol()));
+    err("RTF: non supported HTML-entity found: %s\n",HtmlEntityMapper::instance()->html(s->symbol(),TRUE));
   }
   m_lastIsPara=FALSE;
 }
diff --git a/src/textdocvisitor.cpp b/src/textdocvisitor.cpp
index a313b0a..6f3151f 100644
--- a/src/textdocvisitor.cpp
+++ b/src/textdocvisitor.cpp
@@ -33,7 +33,7 @@ void TextDocVisitor::visit(DocSymbol *s)
   }
   else
   {
-    err("text: non supported HTML-entity found: %s\n",HtmlEntityMapper::instance()->html(s->symbol()));
+    err("text: non supported HTML-entity found: %s\n",HtmlEntityMapper::instance()->html(s->symbol(),TRUE));
   }
 }
 
diff --git a/src/xmldocvisitor.cpp b/src/xmldocvisitor.cpp
index 27c8bb9..b906fc1 100644
--- a/src/xmldocvisitor.cpp
+++ b/src/xmldocvisitor.cpp
@@ -78,7 +78,7 @@ void XmlDocVisitor::visit(DocSymbol *s)
   }
   else
   {
-    err("XML: non supported HTML-entity found: %s\n",HtmlEntityMapper::instance()->html(s->symbol()));
+    err("XML: non supported HTML-entity found: %s\n",HtmlEntityMapper::instance()->html(s->symbol(),TRUE));
   }
 }