diff --git a/powertop.spec b/powertop.spec
index 8555904..e65715f 100644
--- a/powertop.spec
+++ b/powertop.spec
@@ -20,7 +20,7 @@ computer use more power than necessary while it is idle.
 %prep
 %setup -q
 %patch0 -p1 -b .always-create-params
-%patch0 -p1 -b .unknown-readings-fix
+%patch1 -p1 -b .unknown-readings-fix
 
 %build
 make %{?_smp_mflags} CFLAGS="$RPM_OPT_FLAGS"