diff --git a/dev/containers/f29-rpms-py3 b/dev/containers/f29-rpms-py3
index bb000a7..6eea880 100644
--- a/dev/containers/f29-rpms-py3
+++ b/dev/containers/f29-rpms-py3
@@ -12,6 +12,7 @@ RUN dnf -y install \
     which \
     git
 
+# FIXME: this should use $REPO and $BRANCH:
 RUN cd / \
     && git clone https://pagure.io/pagure.git \
     && chmod +x /pagure/dev/containers/runtests_py3.sh
@@ -25,7 +26,6 @@ RUN dnf install -y `grep "Requires:" /pagure/files/pagure.spec | \
     dnf clean all && \
     cd /pagure && python setup.py build
 
-
 WORKDIR /pagure
 ENTRYPOINT ["/pagure/dev/containers/runtests_py3.sh"]
 CMD []
diff --git a/dev/containers/runtests_py2.sh b/dev/containers/runtests_py2.sh
index 9bc6301..ed39786 100644
--- a/dev/containers/runtests_py2.sh
+++ b/dev/containers/runtests_py2.sh
@@ -22,4 +22,4 @@ echo "Last commits:"
 git --no-pager log -2
 fi
 
-python2 /pagure/runtests.py run -f --py2
+python2 /pagure/runtests.py run -f --py2 $TESTCASE
diff --git a/dev/containers/runtests_py3.sh b/dev/containers/runtests_py3.sh
index cefded8..ac2bf03 100644
--- a/dev/containers/runtests_py3.sh
+++ b/dev/containers/runtests_py3.sh
@@ -22,4 +22,4 @@ echo "Last commits:"
 git --no-pager log -2
 fi
 
-python3 /pagure/runtests.py run -f --py3
+python3 /pagure/runtests.py run -f --py3 $TESTCASE
diff --git a/dev/run-tests-container.py b/dev/run-tests-container.py
old mode 100644
new mode 100755
index 55f5648..489f2da
--- a/dev/run-tests-container.py
+++ b/dev/run-tests-container.py
@@ -126,10 +126,10 @@ if __name__ == "__main__":
                 "BRANCH={}".format(os.environ.get("BRANCH") or ""),
                 "-e",
                 "REPO={}".format(os.environ.get("REPO") or ""),
+                "-e",
+                "TESTCASE={}".format(args.test_case or ""),
                 container_name,
-                args.test_case,
             ]
-
             output_code = sp.call(command)
             if output_code:
                 failed.append(container_name)