diff --git a/src/pluto/Makefile.am b/src/pluto/Makefile.am
index c2126abad1..d6db237b5c 100644
--- a/src/pluto/Makefile.am
+++ b/src/pluto/Makefile.am
@@ -90,7 +90,7 @@ AM_CFLAGS = \
 -DPLUTO -DKLIPS -DDEBUG
 
 pluto_LDADD = \
-$(LIBSTRONGSWANDIR)/libstrongswan-lite.la \ 
+$(LIBSTRONGSWANDIR)/libstrongswan-lite.la \
 $(LIBFREESWANDIR)/libfreeswan.a \
 $(LIBCRYPTODIR)/libcrypto.a \
 -lgmp -lresolv -lpthread -ldl