diff --git a/dev-embedded/esp-idf/esp-idf-5.2.1.ebuild b/dev-embedded/esp-idf/esp-idf-5.2.1.ebuild
index f6219e94f6..a7de0c9cd5 100644
--- a/dev-embedded/esp-idf/esp-idf-5.2.1.ebuild
+++ b/dev-embedded/esp-idf/esp-idf-5.2.1.ebuild
@@ -50,6 +50,7 @@ RDEPEND="
 	dev-embedded/esp-idf-size[${PYTHON_USEDEP}]
 	dev-embedded/freertos-gdb[${PYTHON_USEDEP}]
 	dev-embedded/idf-component-manager[${PYTHON_USEDEP}]
+	sys-libs/zlib
 "
 
 RESTRICT="strip"