diff --git a/pgactivity/views.py b/pgactivity/views.py
index 796a206c..5a47821b 100644
--- a/pgactivity/views.py
+++ b/pgactivity/views.py
@@ -247,7 +247,7 @@ def indent(text: str) -> str:
                 f"Write:  {render(system_info.io_write)}",
             ],
         ]
-        yield from render_columns(system_columns, delimiter=",   ")
+        yield from render_columns(system_columns, delimiter="    ")
 
 
 @limit
diff --git a/tests/test_views.txt b/tests/test_views.txt
index 7cf71fba..1b0e568f 100644
--- a/tests/test_views.txt
+++ b/tests/test_views.txt
@@ -90,9 +90,9 @@ Local host, with priviledged access:
 ...        system_info=sysinfo, width=150)
 PostgreSQL 13.1 - localhost - tester@host:5432/postgres - Ref.: 2s - Min. duration: 1.2s
  Size: 117.74M - 12B/s ⋅ TPS: 1 ⋅ Active connections: 79 ⋅ Duration mode: query
- Mem.: 42.5% - 1.87G/5.75G,   IO Max: 12/s
- Swap: 0.0% - 2.29K/5.88G,    Read:   128B/s - 6/s
- Load: 25.00 0.19 0.39,       Write:  8B/s - 9/s
+ Mem.: 42.5% - 1.87G/5.75G    IO Max: 12/s
+ Swap: 0.0% - 2.29K/5.88G     Read:   128B/s - 6/s
+ Load: 25.00 0.19 0.39        Write:  8B/s - 9/s
 
 
 Tests for columns_header()
@@ -471,9 +471,9 @@ Tests for screen()
 ... )
 PostgreSQL 13 - testhost - pgadm@server.prod.tld:5433/app - Ref.: 10s - Min. duration: 1s
  Size: 9.06P - 9.76K/s ⋅ TPS: 5 ⋅ Active connections: 7 ⋅ Duration mode: backend
- Mem.: 2.5% - 954.85M/3.93G,   IO Max: 76/s
- Swap: 1.0% - 2.29K/5.88G,     Read:   128B/s - 6/s
- Load: 0.50 1.90 0.93,         Write:  8B/s - 9/s
+ Mem.: 2.5% - 954.85M/3.93G    IO Max: 76/s
+ Swap: 1.0% - 2.29K/5.88G      Read:   128B/s - 6/s
+ Load: 0.50 1.90 0.93          Write:  8B/s - 9/s
                                 RUNNING QUERIES
 PID    DATABASE           CPU% MEM%              state   Query
 1234   business            2.4  1.0             active   SELECT product_id, p.name FROM products p LEFT JOIN sales s USING (product_id) WHERE s.date >
@@ -509,9 +509,9 @@ F1/1 Running queries    F2/2 Waiting queries    F3/3 Blocking queries   Space Pa
 ... )
 PostgreSQL 13 - testhost - pgadm@server.prod.tld:5433/app - Ref.: 10s - Min.
  Size: 9.06P - 9.76K/s ⋅ TPS: 5 ⋅ Active connections: 7 ⋅ Duration mode: backend
- Mem.: 2.5% - 954.85M/3.93G,   IO Max: 76/s
- Swap: 1.0% - 2.29K/5.88G,     Read:   128B/s - 6/s
- Load: 0.50 1.90 0.93,         Write:  8B/s - 9/s
+ Mem.: 2.5% - 954.85M/3.93G    IO Max: 76/s
+ Swap: 1.0% - 2.29K/5.88G      Read:   128B/s - 6/s
+ Load: 0.50 1.90 0.93          Write:  8B/s - 9/s
                                 RUNNING QUERIES
 PID    DATABASE           CPU% MEM%              state   Query
 1234   business            2.4  1.0             active   SELECT product_id, p.na