diff --git a/Makefile.in b/Makefile.in
index 6fbd825..08ee260 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -1,6 +1,6 @@
 CXX=@CXX@
 CFLAGS=-c -Wall @CFLAGS@ -DTINS_VERSION=@PACKAGE_VERSION@
-LDFLAGS=
+LDFLAGS=-lpcap
 SOURCES=$(wildcard src/*.cpp)
 
 OBJECTS=$(SOURCES:.cpp=.o)