diff --git a/include/verilated.cpp b/include/verilated.cpp
index be0b474d3..c4effbdcf 100644
--- a/include/verilated.cpp
+++ b/include/verilated.cpp
@@ -24,7 +24,10 @@
 //=========================================================================
 
 #define _VERILATED_CPP_
+
 #include "verilated_imp.h"
+#include "verilated_config.h"
+
 #include <cctype>
 #include <sys/stat.h>  // mkdir
 
@@ -1721,6 +1724,13 @@ void Verilated::flushCall() VL_MT_SAFE {
     fflush(stdout);
 }
 
+const char* Verilated::productName() VL_PURE {
+    return VERILATOR_PRODUCT;
+}
+const char* Verilated::productVersion() VL_PURE {
+    return VERILATOR_VERSION;
+}
+
 void Verilated::commandArgs(int argc, const char** argv) VL_MT_SAFE {
     VerilatedLockGuard lock(s_args.m_argMutex);
     s_args.argc = argc;
diff --git a/include/verilated.h b/include/verilated.h
index 2fd7b333f..e2096256c 100644
--- a/include/verilated.h
+++ b/include/verilated.h
@@ -28,15 +28,14 @@
 #ifndef _VERILATED_H_
 #define _VERILATED_H_ 1 ///< Header Guard
 
-#include "verilated_config.h"
 #include "verilatedos.h"
 
 #include <cassert>
+#include <cmath>
 #include <cstdarg>
 #include <cstdio>
 #include <cstdlib>
 #include <cstring>
-#include <cmath>
 #ifdef VL_THREADED
 # include <atomic>
 # include <mutex>
@@ -448,8 +447,8 @@ public:
     static const char* commandArgsPlusMatch(const char* prefixp) VL_MT_SAFE;
 
     /// Produce name & version for (at least) VPI
-    static const char* productName() VL_PURE { return VERILATOR_PRODUCT; }
-    static const char* productVersion() VL_PURE { return VERILATOR_VERSION; }
+    static const char* productName() VL_PURE;
+    static const char* productVersion() VL_PURE;
 
     /// Convenience OS utilities
     static void mkdir(const char* dirname) VL_MT_UNSAFE;