diff --git a/src/Makefile.in b/src/Makefile.in
index bf5dd48ca3..d6629a6e98 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -48,6 +48,6 @@ H5Tinit.c: H5detect
 
 # no $(LIB) in the action below since that's being made now.
 H5detect: H5detect.o
-	$(CC) $(CFLAGS) -o $@ H5detect.o $(LIBS)
+	$(CC) $(CFLAGS) -o $@ H5detect.o $(LDFLAGS) $(LIBS)
 
 @CONCLUDE@