diff --git a/src/server/Makefile.am b/src/server/Makefile.am
--- a/src/server/Makefile.am
+++ b/src/server/Makefile.am
@@ -1,4 +1,4 @@
 bin_PROGRAMS = distrend
 distrend_SOURCES = distrend.c
 distrend_LDADD = @DISTLIBS_LIBS@ @top_builddir@/src/common/libdistren.la
-distrend_CXXFLAGS = @DISTLIBS_CFLAGS@ -I@top_srcdir@/src/common
+distrend_CFLAGS = @DISTLIBS_CFLAGS@ -I@top_srcdir@/src/common