diff --git a/Makefile b/Makefile
index 0cbd2bd..a321500 100644
--- a/Makefile
+++ b/Makefile
@@ -10,8 +10,8 @@ LD=gcc
 BUILD:=debug
 
 # basic build flags configuration
-CFLAGS+=-Wall -Wno-variadic-macros -std=c99 -pedantic -Wno-long-long -D_POSIX_C_SOURCE=20120607L -D_FILE_OFFSET_BITS=64
-LIBS+=
+CFLAGS+=-Wall -Wno-variadic-macros -std=c99 -pedantic -Wno-long-long -D_POSIX_C_SOURCE=20120607L -D_FILE_OFFSET_BITS=64 -pthread
+LIBS+=-pthread
 
 # local include directory
 CFLAGS+=-I./include