diff --git a/src/libs/sqlite2/shell.c b/src/libs/sqlite2/shell.c
index 2d99603a..dd3d9456 100644
--- a/src/libs/sqlite2/shell.c
+++ b/src/libs/sqlite2/shell.c
@@ -25,6 +25,9 @@
 # include <pwd.h>
 # include <unistd.h>
 # include <sys/types.h>
+#else
+/* Make sure isatty() has a prototype */
+extern int isatty(int);
 #endif
 
 #if defined(HAVE_READLINE) && HAVE_READLINE==1
@@ -38,10 +41,6 @@
 # define stifle_history(X)
 #endif
 
-/* Make sure isatty() has a prototype.
-*/
-extern int isatty();
-
 /*
 ** The following is the open SQLite database.  We make a pointer
 ** to this database a static variable so that it can be accessed