diff --git a/tests/http/clients/Makefile.am b/tests/http/clients/Makefile.am
index 386da5a22a..8fdc190b94 100644
--- a/tests/http/clients/Makefile.am
+++ b/tests/http/clients/Makefile.am
@@ -33,6 +33,8 @@ AUTOMAKE_OPTIONS = foreign nostdinc
 # $(top_srcdir)/include is for libcurl's external include files
 
 AM_CPPFLAGS = -I$(top_srcdir)/include   \
+              -I$(top_builddir)/lib     \
+              -I$(top_srcdir)/lib       \
               -DCURL_DISABLE_DEPRECATION
 
 LIBDIR = $(top_builddir)/lib
diff --git a/tests/http/clients/ws-data.c b/tests/http/clients/ws-data.c
index 1c61d59f72..93bea4ee75 100644
--- a/tests/http/clients/ws-data.c
+++ b/tests/http/clients/ws-data.c
@@ -36,7 +36,7 @@
 
 /* curl stuff */
 #include <curl/curl.h>
-#include "../../../lib/curl_setup.h"
+#include "curl_setup.h"
 
 #ifdef USE_WEBSOCKETS
 
diff --git a/tests/http/clients/ws-pingpong.c b/tests/http/clients/ws-pingpong.c
index 4307dea73f..d8cab976e8 100644
--- a/tests/http/clients/ws-pingpong.c
+++ b/tests/http/clients/ws-pingpong.c
@@ -36,7 +36,7 @@
 
 /* curl stuff */
 #include <curl/curl.h>
-#include "../../../lib/curl_setup.h"
+#include "curl_setup.h"
 
 #ifdef USE_WEBSOCKETS