diff --git a/tests/sys/snprintf/Makefile b/tests/sys/snprintf/Makefile
index d5e587b491..db6f70cd75 100644
--- a/tests/sys/snprintf/Makefile
+++ b/tests/sys/snprintf/Makefile
@@ -4,4 +4,9 @@ include ../Makefile.sys_common
 # to compile due to PRI*64 macros not being defined
 FEATURES_BLACKLIST := arch_avr8
 
+# This enables support for printing 64 bit numbers. You can comment this out
+# to shrink the test app. The test will skip the corresponding test
+# automatically if printf_long_long is not used.
+USEMODULE += printf_long_long
+
 include $(RIOTBASE)/Makefile.include
diff --git a/tests/sys/snprintf/main.c b/tests/sys/snprintf/main.c
index bf9b338867..29a61f2586 100644
--- a/tests/sys/snprintf/main.c
+++ b/tests/sys/snprintf/main.c
@@ -27,6 +27,8 @@
 #include <string.h>
 #include <unistd.h>
 
+#include "modules.h"
+
 static bool failed = false;
 
 static void check(const char *expected, const char *got, int retval)
@@ -277,7 +279,12 @@ int main(void)
     test_int8();
     test_int16();
     test_int32();
-    test_int64();
+    if (IS_USED(MODULE_PRINTF_LONG_LONG)) {
+        test_int64();
+    }
+    else {
+        puts("WARNING: Module printf_long_long not used, skipping test for 64 bit");
+    }
     test_size();
     test_flags_widths();