diff --git a/dbdimp.c b/dbdimp.c
index a8e96fb..0ede7c6 100644
--- a/dbdimp.c
+++ b/dbdimp.c
@@ -10,7 +10,7 @@ DBISTATE_DECLARE;
  * Debug Macros
  *-----------------------------------------------------*/
 
-#define DBD_SQLITE_CROAK_DEBUG
+#undef DBD_SQLITE_CROAK_DEBUG
 
 #ifdef DBD_SQLITE_CROAK_DEBUG
   #define croak_if_db_is_null()   if (!imp_dbh->db)   croak("imp_dbh->db is NULL at line %d in %s", __LINE__, __FILE__)
diff --git a/t/29_cppcomments.t b/t/29_cppcomments.t
index f92ba31..951234a 100644
--- a/t/29_cppcomments.t
+++ b/t/29_cppcomments.t
@@ -31,6 +31,11 @@ foreach my $file (@c_files) {
                 next FILE;
             }
         }
+
+        if (/#define\s+DBD_SQLITE_CROAK_DEBUG/) {
+            fail("debug macro is enabled in $file line $line");
+            next FILE;
+        }
     }
     pass("$file has no C++ comments");
     close(F);