diff --git a/kea.changes b/kea.changes
index cb632fe..96ff6ca 100644
--- a/kea.changes
+++ b/kea.changes
@@ -19,6 +19,7 @@ Tue Oct  8 11:47:33 UTC 2024 - Jorik Cronenberg <jorik.cronenberg@suse.com>
 
 - Only require bison for build and enable regen_files on Tumbleweed
   and SLFO, because bison is too old in SLES/Leap
+- Remove leading zeros from %if %{with ...}
 
 -------------------------------------------------------------------
 Tue Jun 18 09:37:04 UTC 2024 - Jan Engelhardt <jengelh@inai.de>
diff --git a/kea.spec b/kea.spec
index 371927c..93f0fe5 100644
--- a/kea.spec
+++ b/kea.spec
@@ -59,7 +59,7 @@ Source2:        https://ftp.isc.org/isc/kea/%version/kea-%version.tar.gz.asc
 Source3:        kea.keyring
 BuildRequires:  autoconf >= 2.59
 BuildRequires:  automake
-%if 0%{with regen_files}
+%if %{with regen_files}
 BuildRequires:  bison >= 3.3
 %endif
 BuildRequires:  freeradius-server-devel
@@ -77,7 +77,7 @@ BuildRequires:  xz
 BuildRequires:  pkgconfig(libcrypto)
 %sysusers_requires
 Suggests:       %name-hooks = %version
-%if 0%{with regen_files}
+%if %{with regen_files}
 BuildRequires:  flex
 %endif
 %if 0%{?suse_version} >= 1500
@@ -359,7 +359,7 @@ export FREERADIUS_DICTIONARY=""
 autoreconf -fi
 %configure \
 	--disable-rpath --disable-static \
-%if 0%{with regen_files}
+%if %{with regen_files}
 	--enable-generate-docs --enable-generate-parser \
 %endif
 	--enable-logger-checks \