--- a/src/Makefile
+++ b/src/Makefile
@@ -503,7 +503,7 @@
 libcgmic.o: gmic_libc.cpp CImg.h gmic_libc.h gmic.h
 	$(CXX) -o libcgmic.o -c gmic_libc.cpp -Dgmic_core $(PIC) $(CFLAGS)
 
-use_libcgmic: use_libcgmic.c gmic_libc.h
+use_libcgmic: use_libcgmic.c libcgmic.so
 	$(CC) -std=c99 -o use_libcgmic use_libcgmic.c -lcgmic $(LIBS)
 
 # libcgmic (static).