diff --git a/src/tools/dummy_map.cpp b/src/tools/dummy_map.cpp
index 1f14a1b88..a211cc307 100644
--- a/src/tools/dummy_map.cpp
+++ b/src/tools/dummy_map.cpp
@@ -92,7 +92,7 @@ void CreateEmptyMap(IStorage *pStorage)
 	unsigned char *pDataChar = static_cast<unsigned char *>(pData);
 
 	unsigned Crc = crc32(0, pDataChar, DataSize);
-	SHA256_DIGEST Sha256 = sha256(&pDataChar, DataSize);
+	SHA256_DIGEST Sha256 = sha256(pDataChar, DataSize);
 
 	char aMapSha[SHA256_MAXSTRSIZE];
 	sha256_str(Sha256, aMapSha, sizeof(aMapSha));