diff --git a/Makefile.in b/Makefile.in
index 87c4d5f..30923c8 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -1,8 +1,9 @@
 srcdir=@srcdir@
 
-CFLAGS=@CFLAGS@ @PURPLE_CFLAGS@ -Wall -Wextra -Wno-unused-parameter -I${srcdir} -I. -fno-strict-aliasing -fPIC
+CFLAGS=@CFLAGS@ @PURPLE_CFLAGS@ -Wall -Wextra -Wno-unused-parameter -I${srcdir} -I. -fno-strict-aliasing -fPIC -DDESTDIR=\"@PREFIX@\"
 LDFLAGS=@LDFLAGS@ @OPENSSL_LDFLAGS@ @PURPLE_LIBS@ @LIBS@ -lcrypto -rdynamic -ggdb
-CPPFLAGS=@CPPFLAGS@ -DFLAGS
+CPPFLAGS=@CPPFLAGS@ -DFLAGS 
+DESTDIR=@PREFIX@
 COMPILE_FLAGS=${CFLAGS} ${CPPFLAGS}
 LINK_FLAGS=${LDFLAGS}
 
diff --git a/telegram-purple.c b/telegram-purple.c
index 2b95778..f915352 100755
--- a/telegram-purple.c
+++ b/telegram-purple.c
@@ -63,10 +63,14 @@
 
 #define _(m) m
 
+#ifndef DESTDIR
+#define DESTDIR
+#endif
+
 PurplePlugin *_telegram_protocol = NULL;
 PurpleGroup *tggroup;
 const char *config_dir = ".telegram-purple";
-const char *pk_path = "/etc/telegram-purple/server.pub";
+const char *pk_path = DESTDIR"/etc/telegram-purple/server.pub";
 void tgprpl_login_on_connected();
 void on_user_get_info (struct tgl_state *TLS, void *info_data, int success, struct tgl_user *U);