diff --git a/Makefile.am b/Makefile.am
index db22184f5d..31d22f7754 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -157,8 +157,8 @@ if ENABLE_ZRTP
 CORE_CFLAGS += -I$(switch_srcdir)/libs/libzrtp/third_party/bgaes
 CORE_CFLAGS += -I$(switch_srcdir)/libs/libzrtp/third_party/bnlib
 CORE_CFLAGS += -isystem $(switch_srcdir)/libs/libzrtp/include
-ZRTP_LDFLAGS = -Llibs/libzrtp/third_party/bnlib
-ZRTP_LDFLAGS += -Llibs/libzrtp/projects/gnu/build
+ZRTP_LDFLAGS = -L$(switch_srcdir)/libs/libzrtp/third_party/bnlib
+ZRTP_LDFLAGS += -L$(switch_srcdir)/libs/libzrtp/projects/gnu/build
 ZRTP_LIBS = -lbn -lzrtp
 libfreeswitch_la_LDFLAGS += $(ZRTP_LDFLAGS)
 libfreeswitch_la_LIBADD += $(ZRTP_LIBS)