diff --git a/microcode_ctl.spec b/microcode_ctl.spec
index 32f00f25d4a7e893143761c508ab3ade2656745d..3c34f5597d8c5195b195e897c73d4c1552c14cb2 100644
--- a/microcode_ctl.spec
+++ b/microcode_ctl.spec
@@ -22,7 +22,7 @@ back to the old microcode.
 
 %prep
 %setup -T -q -c -n %{base_name}-%{version}
-tar xf %{SOURCE0} --strip 1 */intel-ucode/* */intel-ucode-with-caveats/* \
+tar xf %{SOURCE0} --strip 1 --wildcards */intel-ucode/* */intel-ucode-with-caveats/* \
     --one-top-level=intel-ucode --strip-components=2 --backup=simple
 if [ $? -ne 0 ]; then
   exit $?