diff --git a/wrenchboard/build/config.m4 b/wrenchboard/build/config.m4
index a034ec83..9329dab0 100644
--- a/wrenchboard/build/config.m4
+++ b/wrenchboard/build/config.m4
@@ -7,6 +7,7 @@ if test $PHP_WRENCHBOARD_API != "no"; then
     PHP_SUBST(WRENCHBOARD_API_SHARED_LIBADD)
     PHP_ADD_LIBRARY(stdc++, 1, WRENCHBOARD_API_SHARED_LIBADD)
     PHP_ADD_INCLUDE(/usr/include/pgsql)
+    PHP_ADD_INCLUDE(/usr/include/postgresql)
     PHP_ADD_LIBRARY_WITH_PATH(pq, /usr/lib64,  WRENCHBOARD_API_SHARED_LIBADD)
     PHP_ADD_LIBRARY(curl, 1, WRENCHBOARD_API_SHARED_LIBADD)
     PHP_ADD_LIBRARY(config++, 1, WRENCHBOARD_API_SHARED_LIBADD)