diff --git a/src/core/mac/mac.cpp b/src/core/mac/mac.cpp
index d451a0809..08d3e4ef1 100644
--- a/src/core/mac/mac.cpp
+++ b/src/core/mac/mac.cpp
@@ -55,17 +55,18 @@
 namespace ot {
 namespace Mac {
 
-static const uint8_t sMode2Key[] = {0x78, 0x58, 0x16, 0x86, 0xfd, 0xb4, 0x58, 0x0f,
-                                    0xb0, 0x92, 0x54, 0x6a, 0xec, 0xbd, 0x15, 0x66};
+const uint8_t Mac::sMode2Key[] = {0x78, 0x58, 0x16, 0x86, 0xfd, 0xb4, 0x58, 0x0f,
+                                  0xb0, 0x92, 0x54, 0x6a, 0xec, 0xbd, 0x15, 0x66};
 
-static const otExtAddress sMode2ExtAddress = {
+const otExtAddress Mac::sMode2ExtAddress = {
     {0x35, 0x06, 0xfe, 0xb8, 0x23, 0xd4, 0x87, 0x12},
 };
 
-static const otExtendedPanId sExtendedPanidInit = {
+const otExtendedPanId Mac::sExtendedPanidInit = {
     {0xde, 0xad, 0x00, 0xbe, 0xef, 0x00, 0xca, 0xfe},
 };
-static const char sNetworkNameInit[] = "OpenThread";
+
+const char Mac::sNetworkNameInit[] = "OpenThread";
 
 Mac::Mac(Instance &aInstance)
     : InstanceLocator(aInstance)
diff --git a/src/core/mac/mac.hpp b/src/core/mac/mac.hpp
index 11e8c2f5e..30fa6138a 100644
--- a/src/core/mac/mac.hpp
+++ b/src/core/mac/mac.hpp
@@ -678,6 +678,11 @@ private:
 
     static const char *OperationToString(Operation aOperation);
 
+    static const uint8_t         sMode2Key[];
+    static const otExtAddress    sMode2ExtAddress;
+    static const otExtendedPanId sExtendedPanidInit;
+    static const char            sNetworkNameInit[];
+
     bool mEnabled : 1;
     bool mPendingActiveScan : 1;
     bool mPendingEnergyScan : 1;