diff --git a/Makefile b/Makefile
index 29c180c..12f0db5 100644
--- a/Makefile
+++ b/Makefile
@@ -87,7 +87,7 @@ endif
 all: ${LIBUCONTEXT_SONAME} ${LIBUCONTEXT_STATIC_NAME} ${LIBUCONTEXT_POSIX_NAME} ${LIBUCONTEXT_POSIX_STATIC_NAME} ${LIBUCONTEXT_PC}
 
 ${LIBUCONTEXT_POSIX_NAME}: ${LIBUCONTEXT_NAME} ${LIBUCONTEXT_POSIX_OBJ}
-	$(CC) -fPIC -o ${LIBUCONTEXT_POSIX_NAME} ${LIBUCONTEXT_POSIX_LINKER_FLAGS} ${LIBUCONTEXT_POSIX_OBJ} ${LDFLAGS}
+	$(CC) -fPIC -shared -o ${LIBUCONTEXT_POSIX_NAME} ${LIBUCONTEXT_POSIX_LINKER_FLAGS} ${LIBUCONTEXT_POSIX_OBJ} ${LDFLAGS}
 
 ${LIBUCONTEXT_POSIX_STATIC_NAME}: ${LIBUCONTEXT_STATIC_NAME} ${LIBUCONTEXT_POSIX_OBJ}
 	$(AR) rcs ${LIBUCONTEXT_POSIX_STATIC_NAME} ${LIBUCONTEXT_POSIX_OBJ}
@@ -99,7 +99,7 @@ ${LIBUCONTEXT_STATIC_NAME}: ${LIBUCONTEXT_HEADERS} ${LIBUCONTEXT_OBJ}
 	$(AR) rcs ${LIBUCONTEXT_STATIC_NAME} ${LIBUCONTEXT_OBJ}
 
 ${LIBUCONTEXT_NAME}: ${LIBUCONTEXT_HEADERS} ${LIBUCONTEXT_OBJ}
-	$(CC) -fPIC -o ${LIBUCONTEXT_NAME} ${LIBUCONTEXT_LINKER_FLAGS} ${LIBUCONTEXT_OBJ} ${LDFLAGS}
+	$(CC) -fPIC -shared -o ${LIBUCONTEXT_NAME} ${LIBUCONTEXT_LINKER_FLAGS} ${LIBUCONTEXT_OBJ} ${LDFLAGS}
 
 ${LIBUCONTEXT_SONAME}: ${LIBUCONTEXT_NAME}
 	ln -sf ${LIBUCONTEXT_NAME} ${LIBUCONTEXT_SONAME}