diff --git a/include/QF/simd/mat4f.h b/include/QF/simd/mat4f.h
index 658cf582b..e461fe4a3 100644
--- a/include/QF/simd/mat4f.h
+++ b/include/QF/simd/mat4f.h
@@ -77,10 +77,16 @@ VISIBLE
 void
 mmulf (mat4f_t c, const mat4f_t a, const mat4f_t b)
 {
-	c[0] = a[0] * b[0][0] + a[1] * b[0][1] + a[2] * b[0][2] + a[3] * b[0][3];
-	c[1] = a[0] * b[1][0] + a[1] * b[1][1] + a[2] * b[1][2] + a[3] * b[1][3];
-	c[2] = a[0] * b[2][0] + a[1] * b[2][1] + a[2] * b[2][2] + a[3] * b[2][3];
-	c[3] = a[0] * b[3][0] + a[1] * b[3][1] + a[2] * b[3][2] + a[3] * b[3][3];
+	mat4f_t     t;
+	t[0] = a[0] * b[0][0] + a[1] * b[0][1] + a[2] * b[0][2] + a[3] * b[0][3];
+	t[1] = a[0] * b[1][0] + a[1] * b[1][1] + a[2] * b[1][2] + a[3] * b[1][3];
+	t[2] = a[0] * b[2][0] + a[1] * b[2][1] + a[2] * b[2][2] + a[3] * b[2][3];
+	t[3] = a[0] * b[3][0] + a[1] * b[3][1] + a[2] * b[3][2] + a[3] * b[3][3];
+
+	c[0] = t[0];
+	c[1] = t[1];
+	c[2] = t[2];
+	c[3] = t[3];
 }
 
 #ifndef IMPLEMENT_MAT4F_Funcs