diff --git a/reactos/lib/shell32/shfldr.h b/reactos/lib/shell32/shfldr.h
index 557449efb07..cb455686616 100644
--- a/reactos/lib/shell32/shfldr.h
+++ b/reactos/lib/shell32/shfldr.h
@@ -55,4 +55,4 @@ static inline int SHELL32_GUIDToStringA (REFGUID guid, LPSTR str)
             guid->Data4[4], guid->Data4[5], guid->Data4[6], guid->Data4[7]);
 }
 
-void _FS_ProcessDisplayFilename(LPSTR szPath, DWORD dwFlags);
+void SHELL_FS_ProcessDisplayFilename(LPSTR szPath, DWORD dwFlags);
diff --git a/reactos/lib/shell32/shfldr_desktop.c b/reactos/lib/shell32/shfldr_desktop.c
index 14aec33b88d..cefbe3fd078 100644
--- a/reactos/lib/shell32/shfldr_desktop.c
+++ b/reactos/lib/shell32/shfldr_desktop.c
@@ -517,7 +517,7 @@ static HRESULT WINAPI ISF_Desktop_fnGetDisplayNameOf (IShellFolder2 * iface,
 	    _ILSimpleGetText (pidl, szPath, MAX_PATH);
 
 	    if (!_ILIsFolder(pidl))
-		_FS_ProcessDisplayFilename(szPath, dwFlags);
+		SHELL_FS_ProcessDisplayFilename(szPath, dwFlags);
 	}
     } else {
 	/* a complex pidl, let the subfolder do the work */
diff --git a/reactos/lib/shell32/shfldr_fs.c b/reactos/lib/shell32/shfldr_fs.c
index 2499383400c..086f399afe6 100644
--- a/reactos/lib/shell32/shfldr_fs.c
+++ b/reactos/lib/shell32/shfldr_fs.c
@@ -592,7 +592,7 @@ IShellFolder_fnGetUIObjectOf (IShellFolder2 * iface,
     return hr;
 }
 
-void _FS_ProcessDisplayFilename(LPSTR szPath, DWORD dwFlags)
+void SHELL_FS_ProcessDisplayFilename(LPSTR szPath, DWORD dwFlags)
 {
     /*FIXME: MSDN also mentions SHGDN_FOREDITING which is not yet handled. */
     if (!(dwFlags & SHGDN_FORPARSING) &&
@@ -682,7 +682,7 @@ IShellFolder_fnGetDisplayNameOf (IShellFolder2 * iface, LPCITEMIDLIST pidl, DWOR
 	_ILSimpleGetText (pidl, szPath + len, MAX_PATH - len);	/* append my own path */
 
 	if (!_ILIsFolder(pidl))
-	    _FS_ProcessDisplayFilename(szPath, dwFlags);
+	    SHELL_FS_ProcessDisplayFilename(szPath, dwFlags);
     }
 
     if ((dwFlags & SHGDN_FORPARSING) && !bSimplePidl) {	/* go deeper if needed */