diff --git a/SHA256SUMS.sources b/SHA256SUMS.sources
index 988a7f1..021e481 100644
--- a/SHA256SUMS.sources
+++ b/SHA256SUMS.sources
@@ -49,7 +49,7 @@ df807e694deea2dcba0c43af318394f3e3fcd52658c3b71b61dad0ce0c0cfb77  gnulib-30820c.
 12cfa21abf618a274017d6b18e95fc6582519d7c08e2403e5c5772ccdd5b85f4  gnulib-d279bc.tar.gz
 a285dc300c3d9c25cc06e38827ef40f6073ec3b9b0fcb5bba433f943be92d8d4  gnulib-e017871.tar.gz
 a32032bab36208509466654df12f507600dfe0313feebbcd218c32a70bf72a16  grep-2.4.tar.gz
-4d2ce9f314f39c9575f913503b0178d6fb2c92920db8e7b7b176b7bab7980fe6  gzip-1.2.4.tar
+1ca41818a23c9c59ef1d5e1d00c0d5eaa2285d931c0fb059637d7c0cc02ad967  gzip-1.2.4.tar.gz
 9f233d8b78e4351fe9dd2d50d83958a0e5af36f54e9818521458a08e058691ba  heirloom-devtools-070527.tar.bz2
 a4adadf76b496a6bc50795702253ecfcb6f0d159b68038f31a5362009340bca2  help2man-1.36.4.tar.gz
 8e8ce6175d435e7df8c9bbb0e5fd5357691cdc28c1a2d00fdd9b47b7643bec3a  libtool-1.4.tar.gz
diff --git a/sysa.py b/sysa.py
index 4ba752a..49c39ff 100755
--- a/sysa.py
+++ b/sysa.py
@@ -224,7 +224,7 @@ class SysA:
         self.get_file("https://mirrors.kernel.org/gnu/mes/mes-0.23.tar.gz")
 
         # gzip 1.2.4
-        self.get_file("https://mirrors.kernel.org/gnu/gzip/gzip-1.2.4.tar")
+        self.get_file("https://mirrors.kernel.org/gnu/gzip/gzip-1.2.4.tar.gz")
 
         # tar 1.12
         self.get_file("https://mirrors.kernel.org/gnu/tar/tar-1.12.tar.gz")
diff --git a/sysa/gzip-1.2.4/gzip-1.2.4.kaem b/sysa/gzip-1.2.4/gzip-1.2.4.kaem
index 779d558..e30f6af 100755
--- a/sysa/gzip-1.2.4/gzip-1.2.4.kaem
+++ b/sysa/gzip-1.2.4/gzip-1.2.4.kaem
@@ -12,6 +12,7 @@ mkdir build
 cd build
 
 # Extract
+ungz ../src/${pkg}.tar.gz
 untar ../src/${pkg}.tar
 cd ${pkg}