diff --git a/Makefile b/Makefile
index b728ead..b7d9f80 100644
--- a/Makefile
+++ b/Makefile
@@ -8,7 +8,9 @@ PREFIX ?= /usr/local
 BINDIR = $(PREFIX)/bin
 MANDIR = $(PREFIX)/share/man/man1
 
-CFLAGS = -Os -march=native -mtune=native -pipe -s -flto -std=c99 -pedantic -Wall -D_DEFAULT_SOURCE -D_XOPEN_SOURCE=600 
+LDFLAGS != pkg-config --libs libsixel
+INCFLAGS != pkg-config --cflags libsixel
+CFLAGS = -Os -march=native -mtune=native -pipe -s -flto -std=c99 -pedantic -Wall -D_DEFAULT_SOURCE -D_XOPEN_SOURCE=600 $(INCFLAGS)
 
 SRC = ccc.c util.c file.c icons.c