diff --git a/libs/gsmlib/Makefile b/libs/gsmlib/Makefile
index ddfc566..1b06210 100644
--- a/libs/gsmlib/Makefile
+++ b/libs/gsmlib/Makefile
@@ -16,6 +16,7 @@ PKG_SOURCE_URL:=https://github.com/vbouchaud/gsmlib.git
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
 PKG_SOURCE_VERSION:=cd5442de07cfe052316ede58640ef81b20627276
+PKG_MIRROR_HASH:=bc24d7ddcb5f4b5f9160351d9f38cf6f35f3feef969f675f883b32d04c8c80fa
 
 PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)