diff --git a/doc/Doxyfile.in b/doc/Doxyfile.in
index 5838d5feb..2446e62bb 100644
--- a/doc/Doxyfile.in
+++ b/doc/Doxyfile.in
@@ -667,7 +667,7 @@ INPUT                  = @srcdir@/mainpage.dox \
 # into libc) for the transcoding. See http://www.gnu.org/software/libiconv for
 # the list of possible encodings.
 
-INPUT_ENCODING         = latin1
+INPUT_ENCODING         = UTF-8
 
 # If the value of the INPUT tag contains directories, you can use the
 # FILE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp