diff --git a/tderadio3/convert-presets/po/Makefile b/tderadio3/convert-presets/po/Makefile
index 9d38c82..4df3e6d 100644
--- a/tderadio3/convert-presets/po/Makefile
+++ b/tderadio3/convert-presets/po/Makefile
@@ -67,7 +67,7 @@ CCDEPMODE = depmode=gcc3
 CFLAGS = -std=iso9899:1990 -W -Wall -Wchar-subscripts -Wshadow -Wpointer-arith -Wmissing-prototypes -Wwrite-strings -D_XOPEN_SOURCE=500 -D_BSD_SOURCE -DNDEBUG -O2  -Wall -g -O2 -Wformat-security -Wmissing-format-attribute
 CONF_FILES =  $(top_srcdir)/./admin/configure.in.min $(top_srcdir)/configure.in.in $(top_srcdir)/./tderadio3/configure.in.in
 CPP = x86_64-linux-gnu-gcc -E
-CPPFLAGS =  -DQT_THREAD_SUPPORT  -D_REENTRANT
+CPPFLAGS =  -DTQT_THREAD_SUPPORT  -D_REENTRANT
 CXX = x86_64-linux-gnu-g++
 CXXCPP = x86_64-linux-gnu-g++ -E
 CXXDEPMODE = depmode=gcc3