diff --git a/dlls/hhctrl.ocx/hhctrl.h b/dlls/hhctrl.ocx/hhctrl.h
index f529a595172..795bea4d13e 100644
--- a/dlls/hhctrl.ocx/hhctrl.h
+++ b/dlls/hhctrl.ocx/hhctrl.h
@@ -141,22 +141,22 @@ BOOL NavigateToChm(HHInfo*,LPCWSTR,LPCWSTR);
 
 /* memory allocation functions */
 
-static inline void __WINE_ALLOC_SIZE(1) *heap_alloc(size_t len)
+static inline void * __WINE_ALLOC_SIZE(1) heap_alloc(size_t len)
 {
     return HeapAlloc(GetProcessHeap(), 0, len);
 }
 
-static inline void __WINE_ALLOC_SIZE(1) *heap_alloc_zero(size_t len)
+static inline void * __WINE_ALLOC_SIZE(1) heap_alloc_zero(size_t len)
 {
     return HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len);
 }
 
-static inline void __WINE_ALLOC_SIZE(2) *heap_realloc(void *mem, size_t len)
+static inline void * __WINE_ALLOC_SIZE(2) heap_realloc(void *mem, size_t len)
 {
     return HeapReAlloc(GetProcessHeap(), 0, mem, len);
 }
 
-static inline void __WINE_ALLOC_SIZE(2) *heap_realloc_zero(void *mem, size_t len)
+static inline void * __WINE_ALLOC_SIZE(2) heap_realloc_zero(void *mem, size_t len)
 {
     return HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, mem, len);
 }
diff --git a/dlls/localspl/localspl_private.h b/dlls/localspl/localspl_private.h
index 614e10824eb..8e67ed3dd5b 100644
--- a/dlls/localspl/localspl_private.h
+++ b/dlls/localspl/localspl_private.h
@@ -51,11 +51,16 @@ extern HINSTANCE LOCALSPL_hInstance;
 
 /* ## Memory allocation functions ## */
 
-static inline void __WINE_ALLOC_SIZE(1) *heap_alloc( size_t len )
+static inline void * __WINE_ALLOC_SIZE(1) heap_alloc( size_t len )
 {
     return HeapAlloc( GetProcessHeap(), 0, len );
 }
 
+static inline void * __WINE_ALLOC_SIZE(1) heap_alloc_zero( size_t len )
+{
+    return HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, len );
+}
+
 static inline BOOL heap_free( void *mem )
 {
     return HeapFree( GetProcessHeap(), 0, mem );
diff --git a/dlls/mshtml/mshtml_private.h b/dlls/mshtml/mshtml_private.h
index 4b4675b9854..5a9f5331d9e 100644
--- a/dlls/mshtml/mshtml_private.h
+++ b/dlls/mshtml/mshtml_private.h
@@ -654,17 +654,17 @@ extern LONG module_ref;
 
 /* memory allocation functions */
 
-static inline void __WINE_ALLOC_SIZE(1) *heap_alloc(size_t len)
+static inline void * __WINE_ALLOC_SIZE(1) heap_alloc(size_t len)
 {
     return HeapAlloc(GetProcessHeap(), 0, len);
 }
 
-static inline void __WINE_ALLOC_SIZE(1) *heap_alloc_zero(size_t len)
+static inline void * __WINE_ALLOC_SIZE(1) heap_alloc_zero(size_t len)
 {
     return HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len);
 }
 
-static inline void __WINE_ALLOC_SIZE(2) *heap_realloc(void *mem, size_t len)
+static inline void * __WINE_ALLOC_SIZE(2) heap_realloc(void *mem, size_t len)
 {
     return HeapReAlloc(GetProcessHeap(), 0, mem, len);
 }
diff --git a/dlls/riched20/editor.h b/dlls/riched20/editor.h
index cbebdba7864..2c683786e78 100644
--- a/dlls/riched20/editor.h
+++ b/dlls/riched20/editor.h
@@ -25,7 +25,7 @@ struct _RTF_Info;
 
 extern HANDLE me_heap;
 
-static inline void __WINE_ALLOC_SIZE(1) *heap_alloc( size_t len )
+static inline void * __WINE_ALLOC_SIZE(1) heap_alloc( size_t len )
 {
     return HeapAlloc( me_heap, 0, len );
 }
@@ -35,7 +35,7 @@ static inline BOOL heap_free( void *ptr )
     return HeapFree( me_heap, 0, ptr );
 }
 
-static inline void __WINE_ALLOC_SIZE(2) *heap_realloc( void *ptr, size_t len )
+static inline void * __WINE_ALLOC_SIZE(2) heap_realloc( void *ptr, size_t len )
 {
     return HeapReAlloc( me_heap, 0, ptr, len );
 }