diff --git a/csi.c b/csi.c
index 9bf639fd..a737022f 100644
--- a/csi.c
+++ b/csi.c
@@ -630,7 +630,7 @@ csi_dispatch(struct terminal *term, uint8_t final)
                         tll_free(term->alt.damage);
                         tll_free(term->alt.scroll_damage);
 
-                        grid_memset(term->grid, 0, 0, term->rows * term->cols);
+                        grid_memclear(term->grid, 0, term->rows * term->cols);
                         term_damage_erase(term, 0, term->rows * term->cols);
                     }
                     break;
diff --git a/grid.c b/grid.c
index 178883e4..a09e3d21 100644
--- a/grid.c
+++ b/grid.c
@@ -27,7 +27,7 @@ grid_get_range(struct grid *grid, int start, int *length)
 }
 
 void
-grid_memset(struct grid *grid, int start, int c, int length)
+grid_memclear(struct grid *grid, int start, int length)
 {
     int left = length;
     while (left > 0) {
@@ -37,7 +37,7 @@ grid_memset(struct grid *grid, int start, int c, int length)
         assert(count > 0);
         assert(count <= left);
 
-        memset(cells, c, count * sizeof(cells[0]));
+        memset(cells, 0, count * sizeof(cells[0]));
 
         left -= count;
         start += count;
diff --git a/grid.h b/grid.h
index 59d9e58b..11f38506 100644
--- a/grid.h
+++ b/grid.h
@@ -4,5 +4,5 @@
 #include "terminal.h"
 
 struct cell *grid_get_range(struct grid *grid, int start, int *length);
-void grid_memset(struct grid *grid, int start, int c, int length);
+void grid_memclear(struct grid *grid, int start, int length);
 void grid_memmove(struct grid *grid, int dst, int src, int length);
diff --git a/terminal.c b/terminal.c
index 52eed5e8..7c15ce87 100644
--- a/terminal.c
+++ b/terminal.c
@@ -183,7 +183,7 @@ term_erase(struct terminal *term, int start, int end)
 
         term_damage_update(term, start, end - start);
     } else {
-        grid_memset(term->grid, start, 0, end - start);
+        grid_memclear(term->grid, start, end - start);
         term_damage_erase(term, start, end - start);
     }
 }
@@ -293,10 +293,9 @@ term_scroll_partial(struct terminal *term, struct scroll_region region, int rows
     term->grid->offset += rows * term->cols;
 
     /* Clear scrolled-in lines */
-    grid_memset(
+    grid_memclear(
         term->grid,
         max(0, region.end - rows) * term->cols,
-        0,
         min(rows, term->rows) * term->cols);
 
     term_damage_scroll(term, DAMAGE_SCROLL, region, rows);
@@ -359,7 +358,7 @@ term_scroll_reverse_partial(struct terminal *term,
 
     term->grid->offset -= rows * term->cols;
 
-    grid_memset(term->grid, region.start * term->cols, 0, rows * term->cols);
+    grid_memclear(term->grid, region.start * term->cols, rows * term->cols);
 
     term_damage_scroll(term, DAMAGE_SCROLL_REVERSE, region, rows);