diff --git a/src/template/hpux_cc b/src/template/hpux_cc
index 8732e3d71c760c8cec1d0e35e2b2df5ad4a1cd12..755ce566fe462d12749adef830fea253362bc648 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