diff --git a/dlls/crypt32/crypt32.spec b/dlls/crypt32/crypt32.spec
index 00a2d62caf5..fc0955e0092 100644
--- a/dlls/crypt32/crypt32.spec
+++ b/dlls/crypt32/crypt32.spec
@@ -92,6 +92,7 @@
 @ stdcall CertSetStoreProperty(ptr long long ptr)
 @ stdcall CertStrToNameA(long str long ptr ptr ptr ptr)
 @ stdcall CertStrToNameW(long wstr long ptr ptr ptr ptr)
+@ stdcall CertUnregisterPhysicalStore(ptr long wstr)
 @ stdcall CertUnregisterSystemStore(ptr long)
 @ stdcall CertVerifyCRLRevocation(long ptr long ptr)
 @ stdcall CertVerifyCRLTimeValidity(ptr ptr)
diff --git a/dlls/crypt32/store.c b/dlls/crypt32/store.c
index 19eca22be2d..91a3cbc0dc2 100644
--- a/dlls/crypt32/store.c
+++ b/dlls/crypt32/store.c
@@ -1384,6 +1384,13 @@ BOOL WINAPI CertRegisterPhysicalStore(const void *pvSystemStore, DWORD dwFlags,
     return FALSE;
 }
 
+BOOL WINAPI CertUnregisterPhysicalStore(const void *pvSystemStore, DWORD dwFlags,
+ LPCWSTR pwszStoreName)
+{
+    FIXME("(%p, %08x, %s): stub\n", pvSystemStore, dwFlags, debugstr_w(pwszStoreName));
+    return TRUE;
+}
+
 BOOL WINAPI CertRegisterSystemStore(const void *pvSystemStore, DWORD dwFlags,
   PCERT_SYSTEM_STORE_INFO pStoreInfo, void *pvReserved)
 {
diff --git a/include/wincrypt.h b/include/wincrypt.h
index 83db6730877..6986bd819ec 100644
--- a/include/wincrypt.h
+++ b/include/wincrypt.h
@@ -4090,6 +4090,9 @@ BOOL WINAPI CertEnumPhysicalStore(const void *pvSystemStore, DWORD dwFlags,
 BOOL WINAPI CertRegisterPhysicalStore(const void *pvSystemStore, DWORD dwFlags,
  LPCWSTR pwszStoreName, PCERT_PHYSICAL_STORE_INFO pStoreInfo, void *pvReserved);
 
+BOOL WINAPI CertUnregisterPhysicalStore(const void *pvSystemStore, DWORD dwFlags,
+ LPCWSTR pwszStoreName);
+
 BOOL WINAPI CertSaveStore(HCERTSTORE hCertStore, DWORD dwMsgAndCertEncodingType,
              DWORD dwSaveAs, DWORD dwSaveTo, void* pvSaveToPara, DWORD dwFlags);