diff --git a/dlls/crypt32/protectdata.c b/dlls/crypt32/protectdata.c
index fa91a098f31..1b59e4a6151 100644
--- a/dlls/crypt32/protectdata.c
+++ b/dlls/crypt32/protectdata.c
@@ -47,7 +47,7 @@
 WINE_DEFAULT_DEBUG_CHANNEL(crypt);
 
 #define CRYPT32_PROTECTDATA_PROV      PROV_RSA_FULL
-#define CRYPT32_PROTECTDATA_HASH_CALG CALG_MD5
+#define CRYPT32_PROTECTDATA_HASH_CALG CALG_SHA1
 #define CRYPT32_PROTECTDATA_KEY_CALG  CALG_RC2
 #define CRYPT32_PROTECTDATA_SALT_LEN  16