diff --git a/src/bump.c b/src/bump.c
index fcba510d..576f43ae 100644
--- a/src/bump.c
+++ b/src/bump.c
@@ -39,7 +39,7 @@ align_up(char *ptr, size_t alignment)
     return ptr + (aligned_addr - addr);
 }
 
-ATTR_NOINLINE static void *
+ATTR_NOINLINE ATTR_MALLOC ATTR_ALLOC_ALIGN(2) static void *
 bump_aligned_alloc_slow(struct bump *bump, size_t alignment, size_t size)
 {
     struct bump_chunk *prev_chunk = bump->current;
@@ -65,7 +65,7 @@ bump_aligned_alloc_slow(struct bump *bump, size_t alignment, size_t size)
     return ptr;
 }
 
-void *
+ATTR_MALLOC ATTR_ALLOC_ALIGN(2) void *
 bump_aligned_alloc(struct bump *bump, size_t alignment, size_t size)
 {
     struct bump_chunk *chunk = bump->current;
diff --git a/src/utils.h b/src/utils.h
index 57fa9717..e0c70dc3 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -336,6 +336,12 @@ open_file(const char *path);
 #define ATTR_NOINLINE
 #endif
 
+#if defined(__GNUC__)
+#define ATTR_ALLOC_ALIGN(position)  __attribute__((alloc_align(position)))
+#else
+#define ATTR_ALLOC_ALIGN(position)
+#endif
+
 #if !(defined(HAVE_ASPRINTF) && HAVE_ASPRINTF)
 XKB_EXPORT_PRIVATE int asprintf(char **strp, const char *fmt, ...) ATTR_PRINTF(2, 3);
 # if !(defined(HAVE_VASPRINTF) && HAVE_VASPRINTF)