diff --git a/pngpriv.h b/pngpriv.h
index 0989521ec..6adaf741b 100644
--- a/pngpriv.h
+++ b/pngpriv.h
@@ -524,7 +524,7 @@ PNG_EXTERN /*PRIVATE*/ PNG_CONST png_uint_16 png_sRGB_table[256];
 #endif
 
 #if defined PNG_SIMPLIFIED_READ_SUPPORTED ||\
-   defined PNG_SIMPLFIED_WRITE_SUPPORTED
+   defined PNG_SIMPLIFIED_WRITE_SUPPORTED
 PNG_EXTERN /*PRIVATE*/ PNG_CONST png_uint_16 png_sRGB_base[512];
 PNG_EXTERN /*PRIVATE*/ PNG_CONST png_byte png_sRGB_delta[512];