diff --git a/m4/require_libcpprest.m4 b/m4/require_libcpprest.m4
index e7ead0e..ea4d25e 100644
--- a/m4/require_libcpprest.m4
+++ b/m4/require_libcpprest.m4
@@ -46,5 +46,5 @@ AC_DEFUN([REQUIRE_LIBCPPREST],[
 
   LIBS="${LIBS} ${OPENSSL_LIBS} ${BOOST_SYSTEM_LIB} -lcpprest"
   AM_CXXFLAGS="${AM_CXXFLAGS} ${OPENSSL_CFLAGS} ${LIBCPPREST_CFLAGS}"
-  AM_LDFLAGS="${AM_LDFLAGS} ${OPENSSL_LDFLAGS} "${LIBCPPREST_LDFLAGS}"
+  AM_LDFLAGS="${AM_LDFLAGS} ${OPENSSL_LDFLAGS} ${LIBCPPREST_LDFLAGS}"
 ])