diff --git a/tools/run_specchecks.sh b/tools/run_specchecks.sh
new file mode 100755
index 000000000..b18fa0029
--- /dev/null
+++ b/tools/run_specchecks.sh
@@ -0,0 +1,19 @@
+#!/bin/bash
+
+set -e
+
+basedir=${1:-$PWD}
+
+WORKSPACE=${WORKSPACE:-$basedir}
+
+echo "run checks over specfiles from $WORKSPACE/logs/"
+
+failed=0
+for spec in $WORKSPACE/logs/*.suse ; do
+    egrep -q '^Source:' $spec && {
+        echo "$spec should not have Source: lines. Please use Source0: instead."
+        failed=1
+    }
+done
+
+exit $failed
diff --git a/tox.ini b/tox.ini
index ffbfbdd2a..780a41e3e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -12,6 +12,7 @@ passenv = http_proxy HTTP_PROXY https_proxy HTTPS_PROXY no_proxy NO_PROXY
 [testenv:lint]
 commands =
   {toxinidir}/tools/run_renderspec.sh {toxinidir}
+  {toxinidir}/tools/run_specchecks.sh {toxinidir}
   {toxinidir}/tools/run_speccleaner.sh {toxinidir}
 
 [testenv:venv]