diff --git a/drivers/gles3/rasterizer_canvas_gles3.cpp b/drivers/gles3/rasterizer_canvas_gles3.cpp
index 0ca013abd1a..33d5df2c106 100644
--- a/drivers/gles3/rasterizer_canvas_gles3.cpp
+++ b/drivers/gles3/rasterizer_canvas_gles3.cpp
@@ -1289,7 +1289,7 @@ void RasterizerCanvasGLES3::_record_item_commands(const Item *p_item, RID p_rend
 
 _FORCE_INLINE_ static uint32_t _indices_to_primitives(RS::PrimitiveType p_primitive, uint32_t p_indices) {
 	static const uint32_t divisor[RS::PRIMITIVE_MAX] = { 1, 2, 1, 3, 1 };
-	static const uint32_t subtractor[RS::PRIMITIVE_MAX] = { 0, 0, 1, 0, 1 };
+	static const uint32_t subtractor[RS::PRIMITIVE_MAX] = { 0, 0, 1, 0, 2 };
 	return (p_indices - subtractor[p_primitive]) / divisor[p_primitive];
 }
 
diff --git a/drivers/gles3/rasterizer_scene_gles3.cpp b/drivers/gles3/rasterizer_scene_gles3.cpp
index 41fa943c896..68914a79296 100644
--- a/drivers/gles3/rasterizer_scene_gles3.cpp
+++ b/drivers/gles3/rasterizer_scene_gles3.cpp
@@ -1224,7 +1224,7 @@ void RasterizerSceneGLES3::voxel_gi_set_quality(RS::VoxelGIQuality) {
 
 _FORCE_INLINE_ static uint32_t _indices_to_primitives(RS::PrimitiveType p_primitive, uint32_t p_indices) {
 	static const uint32_t divisor[RS::PRIMITIVE_MAX] = { 1, 2, 1, 3, 1 };
-	static const uint32_t subtractor[RS::PRIMITIVE_MAX] = { 0, 0, 1, 0, 1 };
+	static const uint32_t subtractor[RS::PRIMITIVE_MAX] = { 0, 0, 1, 0, 2 };
 	return (p_indices - subtractor[p_primitive]) / divisor[p_primitive];
 }
 void RasterizerSceneGLES3::_fill_render_list(RenderListType p_render_list, const RenderDataGLES3 *p_render_data, PassMode p_pass_mode, bool p_append) {
diff --git a/servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.cpp b/servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.cpp
index 7acaeb506b3..7770013bcd8 100644
--- a/servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.cpp
+++ b/servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.cpp
@@ -892,7 +892,7 @@ void RenderForwardClustered::_fill_instance_data(RenderListType p_render_list, i
 
 _FORCE_INLINE_ static uint32_t _indices_to_primitives(RS::PrimitiveType p_primitive, uint32_t p_indices) {
 	static const uint32_t divisor[RS::PRIMITIVE_MAX] = { 1, 2, 1, 3, 1 };
-	static const uint32_t subtractor[RS::PRIMITIVE_MAX] = { 0, 0, 1, 0, 1 };
+	static const uint32_t subtractor[RS::PRIMITIVE_MAX] = { 0, 0, 1, 0, 2 };
 	return (p_indices - subtractor[p_primitive]) / divisor[p_primitive];
 }
 void RenderForwardClustered::_fill_render_list(RenderListType p_render_list, const RenderDataRD *p_render_data, PassMode p_pass_mode, bool p_using_sdfgi, bool p_using_opaque_gi, bool p_using_motion_pass, bool p_append) {
diff --git a/servers/rendering/renderer_rd/forward_mobile/render_forward_mobile.cpp b/servers/rendering/renderer_rd/forward_mobile/render_forward_mobile.cpp
index 9289c21a383..406c5bcd0e9 100644
--- a/servers/rendering/renderer_rd/forward_mobile/render_forward_mobile.cpp
+++ b/servers/rendering/renderer_rd/forward_mobile/render_forward_mobile.cpp
@@ -1904,7 +1904,7 @@ void RenderForwardMobile::_fill_instance_data(RenderListType p_render_list, uint
 
 _FORCE_INLINE_ static uint32_t _indices_to_primitives(RS::PrimitiveType p_primitive, uint32_t p_indices) {
 	static const uint32_t divisor[RS::PRIMITIVE_MAX] = { 1, 2, 1, 3, 1 };
-	static const uint32_t subtractor[RS::PRIMITIVE_MAX] = { 0, 0, 1, 0, 1 };
+	static const uint32_t subtractor[RS::PRIMITIVE_MAX] = { 0, 0, 1, 0, 2 };
 	return (p_indices - subtractor[p_primitive]) / divisor[p_primitive];
 }
 
diff --git a/servers/rendering/renderer_rd/renderer_canvas_render_rd.cpp b/servers/rendering/renderer_rd/renderer_canvas_render_rd.cpp
index 6da4d24e725..74f15409ce7 100644
--- a/servers/rendering/renderer_rd/renderer_canvas_render_rd.cpp
+++ b/servers/rendering/renderer_rd/renderer_canvas_render_rd.cpp
@@ -370,7 +370,7 @@ static RD::RenderPrimitive _primitive_type_to_render_primitive(RS::PrimitiveType
 
 _FORCE_INLINE_ static uint32_t _indices_to_primitives(RS::PrimitiveType p_primitive, uint32_t p_indices) {
 	static const uint32_t divisor[RS::PRIMITIVE_MAX] = { 1, 2, 1, 3, 1 };
-	static const uint32_t subtractor[RS::PRIMITIVE_MAX] = { 0, 0, 1, 0, 1 };
+	static const uint32_t subtractor[RS::PRIMITIVE_MAX] = { 0, 0, 1, 0, 2 };
 	return (p_indices - subtractor[p_primitive]) / divisor[p_primitive];
 }