diff --git a/src/dhcpd-pools.h b/src/dhcpd-pools.h
index b27b85b..90582b5 100644
--- a/src/dhcpd-pools.h
+++ b/src/dhcpd-pools.h
@@ -191,6 +191,13 @@ enum limbits {
 	BIT3 = 0x4
 };
 
+/*! \def STATE_OK
+ * \brief Nagios alarm exit value.
+ */
+#define STATE_OK 0
+#define STATE_WARNING 1
+#define STATE_CRITICAL 2
+
 /* Global variables */
 /* \var prefix_length Length of each prefix.  */
 int prefix_length[2][NUM_OF_PREFIX];
diff --git a/src/output.c b/src/output.c
index 112819d..6720e13 100644
--- a/src/output.c
+++ b/src/output.c
@@ -1070,16 +1070,21 @@ int output_alarming(void)
 			shared_p++;
 		}
 	}
+
+	if (sc || rc)
+		ret_val = STATE_CRITICAL;
+	else if (sw || rw)
+		ret_val = STATE_WARNING;
+	else
+		ret_val = STATE_OK;
+
 	if ((0 < rc && config.output_limit[1] & BIT1) || (0 < sc && config.output_limit[1] & BIT2)) {
-		ret_val = 2;
 		fprintf(outfile, "CRITICAL: %s:",
 			program_name);
 	} else if ((0 < rw && config.output_limit[1] & BIT1) || (0 < sw && config.output_limit[1] & BIT2)) {
-		ret_val = 1;
 		fprintf(outfile, "WARNING: %s:",
 			program_name);
 	} else {
-		ret_val = 0;
 		if (config.output_limit[1] & BIT3)
 			fprintf(outfile, "OK:");
 		else