diff --git a/include/cglm/affine-mat.h b/include/cglm/affine-mat.h
index 0dcb447..f58749b 100644
--- a/include/cglm/affine-mat.h
+++ b/include/cglm/affine-mat.h
@@ -152,7 +152,7 @@ glm_inv_tr(mat4 mat) {
   glm_inv_tr_sse2(mat);
 #else
   CGLM_ALIGN_MAT mat3 r;
-  CGLM_ALIGN(16) vec3 t;
+  CGLM_ALIGN(8)  vec3 t;
 
   /* rotate */
   glm_mat4_pick3t(mat, r);