diff --git a/scripts/genheader.c b/scripts/genheader.c
index b0b50dcaa..607d4e243 100644
--- a/scripts/genheader.c
+++ b/scripts/genheader.c
@@ -98,6 +98,7 @@ int main (int argc, char ** argv)
     /* Compute the size of the C pointer for the Fortran programm */
     fprintf(file, "#define MMG5_DATA_PTR_T INTEGER(kind=%d)\n",
             (int)sizeof(void*));
+    fprintf(file, "#include \"mmgversion.h\"\n");
   }
   fclose(file);
 
diff --git a/src/common/mmgversion.h.in b/src/common/mmgversion.h.in
index dda2aa224..8c7f3ddd6 100644
--- a/src/common/mmgversion.h.in
+++ b/src/common/mmgversion.h.in
@@ -24,7 +24,7 @@
 #include "git_log_mmg.h"
 #endif
 
-#if !defined(MMGVERSION_H)
+#ifndef MMGVERSION_H
 #define MMGVERSION_H
 
 #define MMG_VERSION_RELEASE "@CMAKE_RELEASE_VERSION@"