diff --git a/src/liblzma/common/common.c b/src/liblzma/common/common.c
index 8de37d00..407dd584 100644
--- a/src/liblzma/common/common.c
+++ b/src/liblzma/common/common.c
@@ -35,7 +35,7 @@ lzma_version_string(void)
 // Memory allocation //
 ///////////////////////
 
-extern void * lzma_attribute((__malloc__)) lzma_attr_alloc_size(1)
+extern void * lzma_attr_alloc_size(1)
 lzma_alloc(size_t size, const lzma_allocator *allocator)
 {
 	// Some malloc() variants return NULL if called with size == 0.
@@ -53,7 +53,7 @@ lzma_alloc(size_t size, const lzma_allocator *allocator)
 }
 
 
-extern void * lzma_attribute((__malloc__)) lzma_attr_alloc_size(1)
+extern void * lzma_attr_alloc_size(1)
 lzma_alloc_zero(size_t size, const lzma_allocator *allocator)
 {
 	// Some calloc() variants return NULL if called with size == 0.
diff --git a/src/liblzma/common/common.h b/src/liblzma/common/common.h
index 671d3bc4..41754cc8 100644
--- a/src/liblzma/common/common.h
+++ b/src/liblzma/common/common.h
@@ -280,12 +280,12 @@ struct lzma_internal_s {
 
 /// Allocates memory
 extern void *lzma_alloc(size_t size, const lzma_allocator *allocator)
-		lzma_attribute((__malloc__)) lzma_attr_alloc_size(1);
+		lzma_attr_alloc_size(1);
 
 /// Allocates memory and zeroes it (like calloc()). This can be faster
 /// than lzma_alloc() + memzero() while being backward compatible with
 /// custom allocators.
-extern void * lzma_attribute((__malloc__)) lzma_attr_alloc_size(1)
+extern void * lzma_attr_alloc_size(1)
 		lzma_alloc_zero(size_t size, const lzma_allocator *allocator);
 
 /// Frees memory
diff --git a/src/xz/util.h b/src/xz/util.h
index a2516bf9..6e824dad 100644
--- a/src/xz/util.h
+++ b/src/xz/util.h
@@ -20,11 +20,11 @@
 
 /// \brief      Safe realloc() that never returns NULL
 extern void *xrealloc(void *ptr, size_t size)
-		lzma_attribute((__malloc__)) lzma_attr_alloc_size(2);
+		lzma_attr_alloc_size(2);
 
 
 /// \brief      Safe strdup() that never returns NULL
-extern char *xstrdup(const char *src) lzma_attribute((__malloc__));
+extern char *xstrdup(const char *src);
 
 
 /// \brief      Fancy version of strtoull()