Variable is already initialised in global scope.
diff --git a/api-example.c b/api-example.c
index 9bd4479..71b5b00 100644
--- a/api-example.c
+++ b/api-example.c
@@ -145,7 +145,7 @@
static const char SEPARATOR = '|';
static const char COMMA = ',';
static const char EQ = '=';
-static int ONLY = 0;
+static int ONLY;
void display(char *buf)
{