diff --git a/dlls/crypt32/main.c b/dlls/crypt32/main.c
index df30206cb3c..53c60009258 100644
--- a/dlls/crypt32/main.c
+++ b/dlls/crypt32/main.c
@@ -39,6 +39,7 @@ BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD fdwReason, PVOID pvReserved)
     switch (fdwReason)
     {
         case DLL_PROCESS_ATTACH:
+            DisableThreadLibraryCalls(hInstance);
             CRYPT_InitFunctionSets();
             break;
         case DLL_PROCESS_DETACH:
diff --git a/dlls/rsaenh/rsaenh.c b/dlls/rsaenh/rsaenh.c
index 2e9b7015880..1721a946765 100644
--- a/dlls/rsaenh/rsaenh.c
+++ b/dlls/rsaenh/rsaenh.c
@@ -335,6 +335,7 @@ int WINAPI DllMain(HINSTANCE hInstance, DWORD fdwReason, PVOID pvReserved)
     switch (fdwReason)
     {
         case DLL_PROCESS_ATTACH:
+            DisableThreadLibraryCalls(hInstance);
             init_handle_table(&handle_table);
             break;