diff --git a/sokol_gfx.h b/sokol_gfx.h
index d3efb077f..14928034a 100644
--- a/sokol_gfx.h
+++ b/sokol_gfx.h
@@ -3534,6 +3534,7 @@ typedef struct sg_frame_stats {
     _SG_LOGITEM_XMACRO(VALIDATE_SHADERDESC_UB_ARRAY_COUNT, "uniform array count must be >= 1") \
     _SG_LOGITEM_XMACRO(VALIDATE_SHADERDESC_UB_STD140_ARRAY_TYPE, "uniform arrays only allowed for FLOAT4, INT4, MAT4 in std140 layout") \
     _SG_LOGITEM_XMACRO(VALIDATE_SHADERDESC_NO_CONT_STORAGEBUFFERS, "shader stage storage buffers must occupy continuous slots (sg_shader_desc.vs|fs.storage_buffers[])") \
+    _SG_LOGITEM_XMACRO(VALIDATE_SHADERDESC_STORAGEBUFFER_READONLY, "shader stage storage buffers must be readonly (sg_shader_desc.vs|fs.storage_buffers[].readonly)") \
     _SG_LOGITEM_XMACRO(VALIDATE_SHADERDESC_NO_CONT_IMAGES, "shader stage images must occupy continuous slots (sg_shader_desc.vs|fs.images[])") \
     _SG_LOGITEM_XMACRO(VALIDATE_SHADERDESC_NO_CONT_SAMPLERS, "shader stage samplers must occupy continuous slots (sg_shader_desc.vs|fs.samplers[])") \
     _SG_LOGITEM_XMACRO(VALIDATE_SHADERDESC_IMAGE_SAMPLER_PAIR_IMAGE_SLOT_OUT_OF_RANGE, "shader stage: image-sampler-pair image slot index is out of range (sg_shader_desc.vs|fs.image_sampler_pairs[].image_slot)") \
@@ -16114,6 +16115,7 @@ _SOKOL_PRIVATE bool _sg_validate_shader_desc(const sg_shader_desc* desc) {
                 const sg_shader_storage_buffer_desc* sbuf_desc = &stage_desc->storage_buffers[sbuf_index];
                 if (sbuf_desc->used) {
                     _SG_VALIDATE(storage_buffers_continuous, VALIDATE_SHADERDESC_NO_CONT_STORAGEBUFFERS);
+                    _SG_VALIDATE(sbuf_desc->readonly, VALIDATE_SHADERDESC_STORAGEBUFFER_READONLY);
                 } else {
                     storage_buffers_continuous = false;
                 }