diff --git a/include/re_types.h b/include/re_types.h
index 706c7fbad..739b1dcf0 100644
--- a/include/re_types.h
+++ b/include/re_types.h
@@ -53,7 +53,6 @@ typedef SSIZE_T ssize_t;
 
 /** Check alignment of pointer (p) and byte count (c) **/
 #define re_is_aligned(p, c) (((uintptr_t)(const void *)(p)) % (c) == 0)
-#define is_aligned re_is_aligned
 
 /** Get the minimal value */
 #undef MIN
diff --git a/test/mem.c b/test/mem.c
index 71d7adda3..4b284e081 100644
--- a/test/mem.c
+++ b/test/mem.c
@@ -49,7 +49,7 @@ int test_mem(void)
 	obj->pattern = PATTERN;
 
 	TEST_EQUALS(1, mem_nrefs(obj));
-	TEST_ASSERT(is_aligned(obj, mem_alignment));
+	TEST_ASSERT(re_is_aligned(obj, mem_alignment));
 
 	obj = mem_ref(obj);
 	TEST_EQUALS(2, mem_nrefs(obj));
@@ -67,7 +67,7 @@ int test_mem(void)
 		TEST_ERR(err);
 	}
 
-	TEST_ASSERT(is_aligned(obj, mem_alignment));
+	TEST_ASSERT(re_is_aligned(obj, mem_alignment));
 
 	old = mem_ref(obj);
 	TEST_EQUALS(2, mem_nrefs(obj));