--- src/Makefile.in
+++ src/Makefile.in
@@ -275,7 +275,7 @@
 # Red Hat "by design" bug #82369
 
 # Additional preprocesor definitions
-stunnel_CPPFLAGS = -I/usr/kerberos/include -I$(SSLDIR)/include \
+stunnel_CPPFLAGS = -I$(SSLDIR)/include \
 	-DLIBDIR='"$(pkglibdir)"' -DCONFDIR='"$(sysconfdir)/stunnel"' \
 	-DPIDFILE='"$(localstatedir)/run/stunnel/stunnel.pid"'