diff --git a/ext/opcache/Optimizer/zend_optimizer_internal.h b/ext/opcache/Optimizer/zend_optimizer_internal.h
index a9bad01be3b..0b1afba285b 100644
--- a/ext/opcache/Optimizer/zend_optimizer_internal.h
+++ b/ext/opcache/Optimizer/zend_optimizer_internal.h
@@ -28,8 +28,8 @@
 # define VAR_NUM(v) ((zend_uint)(EX_TMP_VAR_NUM(0, 0) - EX_TMP_VAR(0, v)))
 # define NUM_VAR(v) ((zend_uint)(zend_uintptr_t)EX_TMP_VAR_NUM(0, v))
 #else
-# define VAR_NUM(v) ((v)/(sizeof(temp_variable)))
-# define NUM_VAR(v) ((v)*(sizeof(temp_variable)))
+# define VAR_NUM(v) ((v)/ZEND_MM_ALIGNED_SIZE(sizeof(temp_variable)))
+# define NUM_VAR(v) ((v)*ZEND_MM_ALIGNED_SIZE(sizeof(temp_variable)))
 #endif
 
 #define INV_COND(op)       ((op) == ZEND_JMPZ    ? ZEND_JMPNZ    : ZEND_JMPZ)