diff --git a/src/interfaces/ecpg/test/Makefile.regress b/src/interfaces/ecpg/test/Makefile.regress
index f16622855be3750a4dbf163c15ffe7f733b1a62e..847cded5b15a6a0a22f67cffced232a4c34e43d6 100644
--- a/src/interfaces/ecpg/test/Makefile.regress
+++ b/src/interfaces/ecpg/test/Makefile.regress
@@ -2,8 +2,8 @@ override CPPFLAGS := -I../../include -I$(top_srcdir)/src/interfaces/ecpg/include
 	-I$(libpq_srcdir) $(CPPFLAGS) 
 override CFLAGS += $(PTHREAD_CFLAGS) 
 
-override LDFLAGS := -L../../ecpglib -L../../pgtypeslib $(LDFLAGS)
-override LIBS := -lecpg -lpgtypes $(LIBS) $(PTHREAD_LIBS)
+override LDFLAGS := -L../../ecpglib -L../../pgtypeslib $(filter-out -l%, $(libpq)) $(LDFLAGS)
+override LIBS := -lecpg -lpgtypes $(filter -l%, $(libpq)) $(LIBS) $(PTHREAD_LIBS)
 
 ECPG = ../../preproc/ecpg --regression -I$(srcdir)/../../include