diff --git a/src/back/msl/mod.rs b/src/back/msl/mod.rs
index 3174d4b756..78bcc2123b 100644
--- a/src/back/msl/mod.rs
+++ b/src/back/msl/mod.rs
@@ -210,10 +210,13 @@ impl Default for Options {
 #[cfg_attr(feature = "serialize", derive(serde::Serialize))]
 #[cfg_attr(feature = "deserialize", derive(serde::Deserialize))]
 pub struct PipelineOptions {
-    /// Allow `BuiltIn::PointSize` in the vertex shader.
+    /// Allow `BuiltIn::PointSize` and inject it if doesn't exist.
     ///
-    /// Metal doesn't like this for non-point primitive topologies.
-    pub allow_point_size: bool,
+    /// Metal doesn't like this for non-point primitive topologies and requires it for
+    /// point primitive topologies.
+    ///
+    /// Enable this for vertex shaders with point primitive topologies.
+    pub allow_and_force_point_size: bool,
 }
 
 impl Options {
diff --git a/src/back/msl/writer.rs b/src/back/msl/writer.rs
index 22a5f56b72..a9551dc715 100644
--- a/src/back/msl/writer.rs
+++ b/src/back/msl/writer.rs
@@ -2321,7 +2321,7 @@ impl<W: Write> Writer<W> {
                                 member.binding
                             {
                                 has_point_size = true;
-                                if !context.pipeline_options.allow_point_size {
+                                if !context.pipeline_options.allow_and_force_point_size {
                                     continue;
                                 }
                             }
@@ -2358,7 +2358,7 @@ impl<W: Write> Writer<W> {
 
                 if let FunctionOrigin::EntryPoint(ep_index) = context.origin {
                     let stage = context.module.entry_points[ep_index as usize].stage;
-                    if context.pipeline_options.allow_point_size
+                    if context.pipeline_options.allow_and_force_point_size
                         && stage == crate::ShaderStage::Vertex
                         && !has_point_size
                     {
@@ -3769,7 +3769,7 @@ impl<W: Write> Writer<W> {
 
                         if let crate::Binding::BuiltIn(crate::BuiltIn::PointSize) = *binding {
                             has_point_size = true;
-                            if !pipeline_options.allow_point_size {
+                            if !pipeline_options.allow_and_force_point_size {
                                 continue;
                             }
                         }
@@ -3790,7 +3790,7 @@ impl<W: Write> Writer<W> {
                         writeln!(self.out, ";")?;
                     }
 
-                    if pipeline_options.allow_point_size
+                    if pipeline_options.allow_and_force_point_size
                         && ep.stage == crate::ShaderStage::Vertex
                         && !has_point_size
                     {
diff --git a/tests/in/interface.param.ron b/tests/in/interface.param.ron
index 1c910d2b86..4d85661767 100644
--- a/tests/in/interface.param.ron
+++ b/tests/in/interface.param.ron
@@ -26,6 +26,6 @@
 		zero_initialize_workgroup_memory: true,
 	),
 	msl_pipeline: (
-		allow_point_size: true,
+		allow_and_force_point_size: true,
 	),
 )