diff --git a/zstd.spec b/zstd.spec
index 9c37acb..0dcdd33 100644
--- a/zstd.spec
+++ b/zstd.spec
@@ -89,6 +89,8 @@ Needed for compiling programs that link with the library.
 Summary:        zstd and zlib based gzip drop-in
 Group:          Productivity/Archiving/Compression
 Conflicts:      alternative(gzip)
+Conflicts:      gzip
+Conflicts:      busybox-gzip
 Provides:       gzip
 Provides:       alternative(gzip)
 Requires:       %{name} >= %{version}