diff --git a/libsodium.vcxproj b/libsodium.vcxproj
index 46af9ee8..d9661cea 100644
--- a/libsodium.vcxproj
+++ b/libsodium.vcxproj
@@ -396,7 +396,6 @@
     <ClCompile Include="src\libsodium\crypto_generichash\blake2\ref\blake2b-ref.c" />
     <ClCompile Include="src\libsodium\crypto_generichash\blake2\ref\generichash_blake2b.c" />
     <ClCompile Include="src\libsodium\crypto_generichash\crypto_generichash.c" />
-    <ClCompile Include="src\libsodium\crypto_hashblocks\sha512\hashblocks_sha512_api.c" />
     <ClCompile Include="src\libsodium\crypto_hashblocks\sha512\ref\blocks_sha512.c" />
     <ClCompile Include="src\libsodium\crypto_hash\crypto_hash.c" />
     <ClCompile Include="src\libsodium\crypto_hash\sha256\hash_sha256_api.c" />
diff --git a/libsodium.vcxproj.filters b/libsodium.vcxproj.filters
index 8e300f90..4921729a 100644
--- a/libsodium.vcxproj.filters
+++ b/libsodium.vcxproj.filters
@@ -268,9 +268,6 @@
     <ClCompile Include="src\libsodium\crypto_hashblocks\sha512\ref\blocks_sha512.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="src\libsodium\crypto_hashblocks\sha512\hashblocks_sha512_api.c">
-      <Filter>Source Files</Filter>
-    </ClCompile>
     <ClCompile Include="src\libsodium\crypto_onetimeauth\poly1305\donna\auth_poly1305_donna.c">
       <Filter>Source Files</Filter>
     </ClCompile>
diff --git a/src/libsodium/Makefile.am b/src/libsodium/Makefile.am
index e6aa7ae3..13e51d5a 100644
--- a/src/libsodium/Makefile.am
+++ b/src/libsodium/Makefile.am
@@ -46,7 +46,6 @@ libsodium_la_SOURCES = \
 	crypto_hash/sha512/ref/api.h \
 	crypto_hash/sha512/ref/hash_sha512.c \
 	crypto_hashblocks/sha512/ref/blocks_sha512.c \
-	crypto_hashblocks/sha512/hashblocks_sha512_api.c \
 	crypto_hashblocks/sha512/ref/api.h \
 	crypto_onetimeauth/crypto_onetimeauth.c \
 	crypto_onetimeauth/poly1305/onetimeauth_poly1305.c \
diff --git a/src/libsodium/crypto_hashblocks/sha512/hashblocks_sha512_api.c b/src/libsodium/crypto_hashblocks/sha512/hashblocks_sha512_api.c
deleted file mode 100644
index 63cf6ed5..00000000
--- a/src/libsodium/crypto_hashblocks/sha512/hashblocks_sha512_api.c
+++ /dev/null
@@ -1,16 +0,0 @@
-#include "crypto_hashblocks_sha512.h"
-
-size_t
-crypto_hashblocks_sha512_statebytes(void) {
-    return crypto_hashblocks_sha512_STATEBYTES;
-}
-
-size_t
-crypto_hashblocks_sha512_blockbytes(void) {
-    return crypto_hashblocks_sha512_BLOCKBYTES;
-}
-
-const char *
-crypto_hashblocks_sha512_primitive(void) {
-    return "sha512";
-}
diff --git a/src/libsodium/include/sodium/crypto_hashblocks_sha512.h b/src/libsodium/include/sodium/crypto_hashblocks_sha512.h
index edce45cf..ee6a64b2 100644
--- a/src/libsodium/include/sodium/crypto_hashblocks_sha512.h
+++ b/src/libsodium/include/sodium/crypto_hashblocks_sha512.h
@@ -14,16 +14,6 @@
 extern "C" {
 #endif
 
-SODIUM_EXPORT
-size_t crypto_hashblocks_sha512_statebytes(void);
-
-SODIUM_EXPORT
-size_t crypto_hashblocks_sha512_blockbytes(void);
-
-SODIUM_EXPORT
-const char * crypto_hashblocks_sha512_primitive(void);
-
-SODIUM_EXPORT
 int crypto_hashblocks_sha512(unsigned char *,const unsigned char *,unsigned long long);
 
 #ifdef __cplusplus