diff --git a/scripts/pnglibconf.dfa b/scripts/pnglibconf.dfa
index c4668cd2f..986b8078f 100644
--- a/scripts/pnglibconf.dfa
+++ b/scripts/pnglibconf.dfa
@@ -550,7 +550,7 @@ chunk cHRM
 chunk gAMA
 chunk hIST
 chunk iCCP
-chunk iTXt
+chunk iTXt enables TEXT
 chunk oFFs
 chunk pCAL
 chunk sCAL
@@ -561,7 +561,7 @@ chunk sRGB
 chunk tEXt requires TEXT
 chunk tIME
 chunk tRNS
-chunk zTXt
+chunk zTXt enables TEXT
 
 # This only affects support of the optional PLTE chunk in RGB and RGBA
 # images.  Notice that READ_ANCILLARY_CHUNKS therefore disables part
@@ -598,7 +598,6 @@ option READ_COMPRESSED_TEXT disabled
 option READ_iCCP enables READ_COMPRESSED_TEXT
 option READ_iTXt enables READ_COMPRESSED_TEXT
 option READ_zTXt enables READ_COMPRESSED_TEXT
-option READ_COMPRESSED_TEXT enables READ_TEXT
 
 option WRITE_oFFs enables SAVE_INT_32
 option WRITE_pCAL enables SAVE_INT_32
@@ -607,7 +606,6 @@ option WRITE_COMPRESSED_TEXT disabled
 option WRITE_iCCP enables WRITE_COMPRESSED_TEXT
 option WRITE_iTXt enables WRITE_COMPRESSED_TEXT
 option WRITE_zTXt enables WRITE_COMPRESSED_TEXT
-option WRITE_COMPRESSED_TEXT enables WRITE_TEXT
 
 # Turn this off to disable png_read_png() and png_write_png() and
 # leave the row_pointers member out of the info structure.