diff --git a/unix/Makefile.in b/unix/Makefile.in
index 99bdf05..0b2f660 100644
--- a/unix/Makefile.in
+++ b/unix/Makefile.in
@@ -788,7 +788,7 @@ topDirName:
 # This keeps tcltest from picking up an already installed version of the Tcl
 # library.
 SHELL_ENV =	@LD_LIBRARY_PATH_VAR@=`pwd`:${@LD_LIBRARY_PATH_VAR@} \
-		TCLLIBPATH="@abs_builddir@/pkgs" \
+		TCLLIBPATH="@abs_builddir@/pkgs @abs_builddir@/../tests" \
 		TCL_LIBRARY="${TCL_BUILDTIME_LIBRARY}"
 
 ${TCLTEST_EXE}: ${TCLTEST_OBJS} ${TCL_LIB_FILE} ${TCL_STUB_LIB_FILE} ${BUILD_DLTEST}
