1 files changed, 5 insertions, 1 deletions

diff --git a/libbb/read.c b/libbb/read.c
index 9f6bfcd1b..815007c1e 100644
--- a/libbb/read.c
+++ b/libbb/read.c
@@ -338,12 +338,16 @@ int FAST_FUNC open_zipped(const char *fname)
                         /* .gz and .bz2 both have 2-byte signature, and their
                          * unpack_XXX_stream want this header skipped. */
                         xread(fd, &magic, 2);
+#if ENABLE_FEATURE_SEAMLESS_GZ
 #if BB_MMU
                         xformer = unpack_gz_stream;
 #else
                         xformer_prog = "gunzip";
 #endif
-                        if (magic[0] != 0x1f || magic[1] != 0x8b) {
+#endif
+                        if (!ENABLE_FEATURE_SEAMLESS_GZ
+                         || magic[0] != 0x1f || magic[1] != 0x8b
+                        ) {
                                 if (!ENABLE_FEATURE_SEAMLESS_BZ2
                                  || magic[0] != 'B' || magic[1] != 'Z'
                                 ) {