diff --git a/apps/reader/tex_parser.cpp b/apps/reader/tex_parser.cpp
index 2d12ae40f..559d49cc9 100644
--- a/apps/reader/tex_parser.cpp
+++ b/apps/reader/tex_parser.cpp
@@ -15,7 +15,7 @@ Layout TexParser::getLayout() {
   Layout layout = popText(0);
 
   if (m_hasError) {
-    return CodePointLayout::Builder(CodePoint(0xFFD));
+    return CodePointLayout::Builder(CodePoint(0xffd));
   }
 
   return layout;
@@ -116,13 +116,13 @@ Layout TexParser::popCommand() {
   else if (strncmp(k_thetaCommand, m_text, strlen(k_thetaCommand)) == 0) {
     m_text += strlen(k_thetaCommand);
     if (*m_text == ' ') {
-      return popThetaCommand();
+      return popthetaCommand();
     }
   }
   else if (strncmp(k_piCommand, m_text, strlen(k_piCommand)) == 0) {
     m_text += strlen(k_piCommand);
     if (*m_text == ' ') {
-      return popPiCommand();
+      return poppiCommand();
     }
   }
   
@@ -147,12 +147,12 @@ Layout TexParser::popSqrtCommand() {
   }
 }
 
-Layout TexParser::popThetaCommand() {
-  return CodePointLayout::Builder(UCodePointGreekSmallLetterTheta);
+Layout TexParser::popthetaCommand() {
+  return CodePointLayout::Builder(CodePoint(0x3b8));
 }
 
-Layout TexParser::popPiCommand() {
-  return CodePointLayout::Builder(UCodePointGreekSmallLetterPi);
+Layout TexParser::poppiCommand() {
+  return CodePointLayout::Builder(CodePoint(0x3c0));
 }
 
 }
diff --git a/apps/reader/tex_parser.h b/apps/reader/tex_parser.h
index f1097c854..765d50d7a 100644
--- a/apps/reader/tex_parser.h
+++ b/apps/reader/tex_parser.h
@@ -20,8 +20,8 @@ private:
   Layout popCommand();
   Layout popFracCommand();
   Layout popSqrtCommand();
-  Layout popPiCommand();
-  Layout popThetaCommand();
+  Layout poppiCommand();
+  Layout popthetaCommand();
   const char * m_text;
   const char * m_endOfText;
   bool m_hasError;