diff --git a/libdnf/conf/ConfigMain.cpp b/libdnf/conf/ConfigMain.cpp
index 40ae7b8fc..3dcc4ebc3 100644
--- a/libdnf/conf/ConfigMain.cpp
+++ b/libdnf/conf/ConfigMain.cpp
@@ -360,7 +360,7 @@ class ConfigMain::Impl {
     OptionBool proxy_sslverify{true};
     OptionString proxy_sslclientcert{""};
     OptionString proxy_sslclientkey{""};
-    OptionBool deltarpm{true};
+    OptionBool deltarpm{false};
     OptionNumber<std::uint32_t> deltarpm_percentage{75};
     OptionBool skip_if_unavailable{false};
     OptionBool sslverifystatus{false};