diff --git a/dlls/acledit/acledit.spec b/dlls/acledit/acledit.spec
index e1a30a1c70..73432908ff 100644
--- a/dlls/acledit/acledit.spec
+++ b/dlls/acledit/acledit.spec
@@ -1,7 +1,7 @@
 1 stub EditAuditInfo
 2 stub EditOwnerInfo
 3 stub EditPermissionInfo
-4 stdcall DllMain(long long ptr)
+4 stdcall -private DllMain(long long ptr)
 5 stdcall FMExtensionProcW(long long long)
 6 stub SedDiscretionaryAclEditor
 7 stub SedSystemAclEditor
diff --git a/dlls/gpkcsp/gpkcsp.spec b/dlls/gpkcsp/gpkcsp.spec
index af3cdee2ae..7b21641fd9 100644
--- a/dlls/gpkcsp/gpkcsp.spec
+++ b/dlls/gpkcsp/gpkcsp.spec
@@ -21,6 +21,6 @@
 @ stub CPSetProvParam
 @ stub CPSignHash
 @ stub CPVerifySignature
-@ stdcall DllMain(ptr long ptr)
+@ stdcall -private DllMain(ptr long ptr)
 @ stdcall -private DllRegisterServer()
 @ stdcall -private DllUnregisterServer()
diff --git a/dlls/xinput1_3/xinput1_3.spec b/dlls/xinput1_3/xinput1_3.spec
index 5b7f1b97cb..af4f1e00c8 100644
--- a/dlls/xinput1_3/xinput1_3.spec
+++ b/dlls/xinput1_3/xinput1_3.spec
@@ -1,4 +1,4 @@
-1 stdcall DllMain(long long ptr)
+1 stdcall -private DllMain(long long ptr)
 2 stdcall XInputGetState(long ptr)
 3 stdcall XInputSetState(long ptr)
 4 stdcall XInputGetCapabilities(long long ptr)
diff --git a/dlls/xinput1_4/xinput1_4.spec b/dlls/xinput1_4/xinput1_4.spec
index a9116665ab..9d08286b82 100644
--- a/dlls/xinput1_4/xinput1_4.spec
+++ b/dlls/xinput1_4/xinput1_4.spec
@@ -1,4 +1,4 @@
-1 stdcall DllMain(long long ptr)
+1 stdcall -private DllMain(long long ptr)
 2 stdcall XInputGetState(long ptr) xinput1_3.XInputGetState
 3 stdcall XInputSetState(long ptr) xinput1_3.XInputSetState
 4 stdcall XInputGetCapabilities(long long ptr) xinput1_3.XInputGetCapabilities
diff --git a/tools/winebuild/parser.c b/tools/winebuild/parser.c
index 9252ee8f31..1d7b84e883 100644
--- a/tools/winebuild/parser.c
+++ b/tools/winebuild/parser.c
@@ -603,6 +603,7 @@ static int parse_spec_ordinal( int ordinal, DLLSPEC *spec )
     {
         if (!strcmp( odp->name, "DllRegisterServer" ) ||
             !strcmp( odp->name, "DllUnregisterServer" ) ||
+            !strcmp( odp->name, "DllMain" ) ||
             !strcmp( odp->name, "DllGetClassObject" ) ||
             !strcmp( odp->name, "DllGetVersion" ) ||
             !strcmp( odp->name, "DllInstall" ) ||