diff --git a/internal/manager/job_compilers/job_compilers_test.go b/internal/manager/job_compilers/job_compilers_test.go
index 9a4b71f6..fb503220 100644
--- a/internal/manager/job_compilers/job_compilers_test.go
+++ b/internal/manager/job_compilers/job_compilers_test.go
@@ -90,7 +90,7 @@ func TestSimpleBlenderRenderHappy(t *testing.T) {
 	expectCliArgs := []interface{}{ // They are strings, but Goja doesn't know that and will produce an []interface{}.
 		"--render-output", "/render/sprites/farm_output/promo/square_ellie/square_ellie.lighting_light_breakdown2__intermediate-2006-01-02_090405/######",
 		"--render-format", settings["format"].(string),
-		"--render-frame", "1-3",
+		"--render-frame", "1..3",
 	}
 	assert.NotEmpty(t, t0.UUID)
 	assert.Equal(t, "render-1-3", t0.Name)
@@ -172,7 +172,7 @@ func TestSimpleBlenderRenderWindowsPaths(t *testing.T) {
 		// The render output is constructed by the job compiler, and thus transforms to forward slashes.
 		"--render-output", "R:/sprites/farm_output/promo/square_ellie/square_ellie.lighting_light_breakdown2__intermediate-2006-01-02_090405/######",
 		"--render-format", settings["format"].(string),
-		"--render-frame", "1-3",
+		"--render-frame", "1..3",
 	}
 	assert.NotEmpty(t, t0.UUID)
 	assert.Equal(t, "render-1-3", t0.Name)
@@ -227,7 +227,7 @@ func TestSimpleBlenderRenderOutputPathFieldReplacement(t *testing.T) {
 	expectCliArgs := []interface{}{ // They are strings, but Goja doesn't know that and will produce an []interface{}.
 		"--render-output", "/root/2006-01-02_090405/jobname__intermediate-2006-01-02_090405/######",
 		"--render-format", sj.Settings.AdditionalProperties["format"].(string),
-		"--render-frame", "1-3",
+		"--render-frame", "1..3",
 	}
 	assert.EqualValues(t, AuthoredCommandParameters{
 		"exe":        "{blender}",
diff --git a/internal/manager/job_compilers/scripts/simple_blender_render.js b/internal/manager/job_compilers/scripts/simple_blender_render.js
index 00b9191c..df2f9193 100644
--- a/internal/manager/job_compilers/scripts/simple_blender_render.js
+++ b/internal/manager/job_compilers/scripts/simple_blender_render.js
@@ -118,7 +118,7 @@ function authorRenderTasks(settings, renderDir, renderOutput) {
             args: [
                 "--render-output", path.join(renderDir, path.basename(renderOutput)),
                 "--render-format", settings.format,
-                "--render-frame", chunk,
+                "--render-frame", chunk.replace("-", ".."), // Convert to Blender frame range notation.
             ]
         });
         task.addCommand(command);