diff --git a/glances/plugins/load/render_curses_v5.py b/glances/plugins/load/render_curses_v5.py
index ef6d8ee8..6cdc32ae 100644
--- a/glances/plugins/load/render_curses_v5.py
+++ b/glances/plugins/load/render_curses_v5.py
@@ -73,11 +73,15 @@ def render(payload: dict[str, Any], fields_desc: dict[str, dict[str, Any]]) -> l
         return [Row(cells=[Cell(text="LOAD", color=ColorRole.HEADER)])]
 
     # Line 1: title + cpucore suffix.
+    # The value cell width must match the body load-average value width
+    # (`_LOAD_VALUE_WIDTH = 6`) so the right edges of every line in the
+    # block align. v4 padded the int with `{:3}core` (7 chars), which
+    # made the corecount cell 1 char wider than the load-average values
+    # and produced a visible 1-char overhang.
     header_cells: list[Cell] = [Cell(text="LOAD".ljust(_LOAD_LABEL_WIDTH), color=ColorRole.HEADER)]
     cores = payload.get("cpucore")
     if isinstance(cores, (int, float)) and cores > 0:
-        # v4 format: `{:3}core` — `'  4core'` for 4 cores.
-        header_cells.append(Cell(text=f"{int(cores):>3}core".rjust(_LOAD_VALUE_WIDTH)))
+        header_cells.append(Cell(text=f"{int(cores)}core".rjust(_LOAD_VALUE_WIDTH)))
     else:
         header_cells.append(Cell(text="".rjust(_LOAD_VALUE_WIDTH)))
     rows: list[Row] = [Row(cells=header_cells)]
diff --git a/tests/test_plugin_load_render_curses_v5.py b/tests/test_plugin_load_render_curses_v5.py
index c6329e23..3f41d4d4 100644
--- a/tests/test_plugin_load_render_curses_v5.py
+++ b/tests/test_plugin_load_render_curses_v5.py
@@ -130,3 +130,19 @@ def test_render_columns_align(load_payload, load_fields):
     rows = render(load_payload, load_fields)
     label_widths = {len(r.cells[0].text) for r in rows if r.cells}
     assert len(label_widths) == 1
+
+
+def test_render_value_cells_share_width_across_header_and_body(load_payload, load_fields):
+    """The corecount cell (header) and the load-average cells (body) must
+    have the same width so right edges align. Earlier bug: `{:3}core`
+    produced 7-char header value vs 6-char body values → 1-char overhang."""
+    rows = render(load_payload, load_fields)
+    widths = {len(r.cells[1].text) for r in rows if len(r.cells) >= 2}
+    assert len(widths) == 1, f"value cells not uniform: {widths}"
+
+
+def test_render_total_line_width_matches_across_rows(load_payload, load_fields):
+    """Each line's total rendered width (cells joined with 1 space) is identical."""
+    rows = render(load_payload, load_fields)
+    totals = {sum(len(c.text) for c in r.cells) + max(0, len(r.cells) - 1) for r in rows}
+    assert len(totals) == 1, f"line widths differ: {totals}"