diff --git a/src/libsodium/crypto_pwhash/argon2/argon2-core.c b/src/libsodium/crypto_pwhash/argon2/argon2-core.c
index 7767827d..c9d369f7 100644
--- a/src/libsodium/crypto_pwhash/argon2/argon2-core.c
+++ b/src/libsodium/crypto_pwhash/argon2/argon2-core.c
@@ -123,7 +123,7 @@ static int allocate_memory(block_region **region, uint32_t m_cost) {
     }
     (*region)->base = base;
     (*region)->memory = memory;
-    (*region)->size = base ? memory_size : 0;
+    (*region)->size = memory_size;
 
     return ARGON2_OK;
 }