diff --git a/test/regression.py b/test/regression.py
index c138408..a6b8b72 100755
--- a/test/regression.py
+++ b/test/regression.py
@@ -214,10 +214,10 @@ def main():
       print("```")
       print(diff_staged)
       print("```")
-  out, _ = run("lsb_release -sd", True)
+  out, _ = run("lsb_release -sd", True).communicate()
   out.strip()
   print("System:", out)
-  out, _ = run("cat /proc/cpuinfo | grep 'model name' | head -n1 | cut -d ':' -f2", True)
+  out, _ = run("cat /proc/cpuinfo | grep 'model name' | head -n1 | cut -d ':' -f2", True).communicate()
   out.strip()
   print("Hardware:", out)
   print("")