diff --git a/blake2.cpp b/blake2.cpp
index 622603c3..cee977e9 100644
--- a/blake2.cpp
+++ b/blake2.cpp
@@ -44,15 +44,15 @@
 #endif
 
 #if (CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X64)
-const unsigned int ALIGN_SPEC32=16;
-const unsigned int ALIGN_SPEC64=16;
+static const unsigned int ALIGN_SPEC32=16;
+static const unsigned int ALIGN_SPEC64=16;
 #elif (CRYPTOPP_CXX11_ALIGNOF)
-const unsigned int ALIGN_SPEC32=alignof(CryptoPP::word32);
-const unsigned int ALIGN_SPEC64=alignof(CryptoPP::word64);
+static const unsigned int ALIGN_SPEC32=alignof(CryptoPP::word32);
+static const unsigned int ALIGN_SPEC64=alignof(CryptoPP::word64);
 #else
 // Can't use GetAlignmentOf<word64>() because of C++11 constexpr
-const unsigned int ALIGN_SPEC32=4;
-const unsigned int ALIGN_SPEC64=8;
+static const unsigned int ALIGN_SPEC32=4;
+static const unsigned int ALIGN_SPEC64=8;
 #endif
 
 NAMESPACE_BEGIN(CryptoPP)
diff --git a/donna_32.cpp b/donna_32.cpp
index 2fc72e9a..e4c91b31 100644
--- a/donna_32.cpp
+++ b/donna_32.cpp
@@ -40,12 +40,12 @@ extern const char DONNA32_FNAME[] = __FILE__;
 ANONYMOUS_NAMESPACE_BEGIN
 
 #if (CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X64)
-const unsigned int ALIGN_SPEC=16;
+static const unsigned int ALIGN_SPEC=16;
 #elif (CRYPTOPP_CXX11_ALIGNOF)
-const unsigned int ALIGN_SPEC=alignof(CryptoPP::word32);
+static const unsigned int ALIGN_SPEC=alignof(CryptoPP::word32);
 #else
 // Can't use GetAlignmentOf<word32>() because of C++11 constexpr
-const unsigned int ALIGN_SPEC=4;
+static const unsigned int ALIGN_SPEC=4;
 #endif
 
 ANONYMOUS_NAMESPACE_END
diff --git a/donna_64.cpp b/donna_64.cpp
index 77ffe9c3..021bc03a 100644
--- a/donna_64.cpp
+++ b/donna_64.cpp
@@ -40,12 +40,12 @@ extern const char DONNA64_FNAME[] = __FILE__;
 ANONYMOUS_NAMESPACE_BEGIN
 
 #if (CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X64)
-const unsigned int ALIGN_SPEC=16;
+static const unsigned int ALIGN_SPEC=16;
 #elif (CRYPTOPP_CXX11_ALIGNOF)
-const unsigned int ALIGN_SPEC=alignof(CryptoPP::word64);
+static const unsigned int ALIGN_SPEC=alignof(CryptoPP::word64);
 #else
 // Can't use GetAlignmentOf<word64>() because of C++11 constexpr
-const unsigned int ALIGN_SPEC=8;
+static const unsigned int ALIGN_SPEC=8;
 #endif
 
 ANONYMOUS_NAMESPACE_END
diff --git a/salsa.cpp b/salsa.cpp
index 01c57d22..608bb385 100644
--- a/salsa.cpp
+++ b/salsa.cpp
@@ -29,12 +29,12 @@
 ANONYMOUS_NAMESPACE_BEGIN
 
 #if (CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X64)
-const unsigned int ALIGN_SPEC=16;
+static const unsigned int ALIGN_SPEC=16;
 #elif (CRYPTOPP_CXX11_ALIGNOF)
-const unsigned int ALIGN_SPEC=alignof(CryptoPP::word32);
+static const unsigned int ALIGN_SPEC=alignof(CryptoPP::word32);
 #else
 // Can't use GetAlignmentOf<word32>() because of C++11 constexpr
-const unsigned int ALIGN_SPEC=4;
+static const unsigned int ALIGN_SPEC=4;
 #endif
 
 ANONYMOUS_NAMESPACE_END