diff --git a/icinga2.spec b/icinga2.spec
index 37e7374..9ce7867 100644
--- a/icinga2.spec
+++ b/icinga2.spec
@@ -333,7 +333,7 @@ Provides Nano syntax highlighting for icinga2.
 
 %prep
 
-%patch1 -p1
+%patch1 -p0
 %setup -q -n %{name}-%{version}
 # use absolute shebang instead of env on SUSE distributions
 %if "%{_vendor}" == "suse"