diff --git a/reactos/base/setup/usetup/cabinet.c b/reactos/base/setup/usetup/cabinet.c
index 2b872f4c295..db6dfa63327 100644
--- a/reactos/base/setup/usetup/cabinet.c
+++ b/reactos/base/setup/usetup/cabinet.c
@@ -712,7 +712,7 @@ CabinetFindNext(PCAB_SEARCH Search)
   PCFFILE Prev;
   ANSI_STRING AnsiString;
   UNICODE_STRING UnicodeString;
-  WCHAR FileName[MAX_PATH];
+  WCHAR FileName[MAX_PATH] = {L'\0'};
 
   if( wcscmp( Search->Cabinet, CabinetName ) != 0 )
 	Search->File = 0;    // restart search of cabinet has changed since last find
diff --git a/reactos/base/setup/usetup/drivesup.c b/reactos/base/setup/usetup/drivesup.c
index 5614f89c329..30a398ff993 100644
--- a/reactos/base/setup/usetup/drivesup.c
+++ b/reactos/base/setup/usetup/drivesup.c
@@ -41,7 +41,7 @@ GetSourcePaths(PUNICODE_STRING SourcePath,
   OBJECT_ATTRIBUTES ObjectAttributes;
   UNICODE_STRING LinkName;
   UNICODE_STRING SourceName;
-  WCHAR SourceBuffer[MAX_PATH];
+  WCHAR SourceBuffer[MAX_PATH] = {L'\0'};
   HANDLE Handle;
   NTSTATUS Status;
   ULONG Length;