diff --git a/drivers/gles3/rasterizer_storage_gles3.cpp b/drivers/gles3/rasterizer_storage_gles3.cpp
index a28dac275ff..a653b821bb3 100644
--- a/drivers/gles3/rasterizer_storage_gles3.cpp
+++ b/drivers/gles3/rasterizer_storage_gles3.cpp
@@ -3799,7 +3799,8 @@ void RasterizerStorageGLES3::multimesh_allocate(RID p_multimesh, int p_instances
 
 		int format_floats = multimesh->color_floats + multimesh->xform_floats;
 		multimesh->data.resize(format_floats * p_instances);
-		for (int i = 0; i < p_instances; i += format_floats) {
+
+		for (int i = 0; i < p_instances * format_floats; i += format_floats) {
 
 			int color_from = 0;