diff --git a/DOCS/man/osc.rst b/DOCS/man/osc.rst
index 4d1222abaa..e1b7e8aaf5 100644
--- a/DOCS/man/osc.rst
+++ b/DOCS/man/osc.rst
@@ -179,11 +179,12 @@ Configurable Options
 ``seekbarkeyframes``
     Default: yes
 
-    Controls the mode used to seek when dragging the seekbar. By default,
-    keyframes are used. If set to false, exact seeking on mouse drags
-    will be used instead. Keyframes are preferred, but exact seeks may be
-    useful in cases where keyframes cannot be found. Note that using exact
-    seeks can potentially make mouse dragging much slower.
+    Controls the mode used to seek when dragging the seekbar (default: true). If
+    set to true, default seeking mode is used (usually keyframes, but player
+    defaults and heuristics can change it to exact). If set to false, exact
+    seeking on mouse drags will be used instead. Keyframes are preferred, but
+    exact seeks may be useful in cases where keyframes cannot be found. Note
+    that using exact seeks can potentially make mouse dragging much slower.
 
 ``seekrangestyle``
     Default: inverted
diff --git a/player/lua/osc.lua b/player/lua/osc.lua
index ec219a1fe0..e7b027cfb7 100644
--- a/player/lua/osc.lua
+++ b/player/lua/osc.lua
@@ -1960,8 +1960,11 @@ function osc_init()
             local seekto = get_slider_value(element)
             if (element.state.lastseek == nil) or
                 (not (element.state.lastseek == seekto)) then
-                    mp.commandv("seek", seekto, "absolute-percent",
-                        user_opts.seekbarkeyframes and "keyframes" or "exact")
+                    local flags = "absolute-percent"
+                    if not user_opts.seekbarkeyframes then
+                        flags = flags .. "+exact"
+                    end
+                    mp.commandv("seek", seekto, flags)
                     element.state.lastseek = seekto
             end