diff --git a/tests/test-credentials.c b/tests/test-credentials.c
index 4119adc..89fee3f 100644
--- a/tests/test-credentials.c
+++ b/tests/test-credentials.c
@@ -30,6 +30,7 @@ SOFTWARE.
 
 int g_verbose = 0;
 char *g_output_format = NULL;
+char *g_scan_output_format = NULL;
 
 typedef struct {
 	const char *input;
diff --git a/tests/test-targets.c b/tests/test-targets.c
index 289a706..70d1628 100644
--- a/tests/test-targets.c
+++ b/tests/test-targets.c
@@ -30,6 +30,7 @@ SOFTWARE.
 
 int g_verbose = 0;
 char *g_output_format = NULL;
+char *g_scan_output_format = NULL;
 
 typedef struct {
 	const char *input;