diff --git a/src/template/hpux_cc b/src/template/hpux_cc
index 8732e3d71c..755ce566fe 100644
--- a/src/template/hpux_cc
+++ b/src/template/hpux_cc
@@ -8,5 +8,6 @@ DLSUFFIX:.sl
 YFLAGS:-d
 YACC:
 CC:cc
+CPP:cc -E -Ae
 # Make aCC be first C++ compiler name tried...
 CCC:aCC