diff --git a/src/stdio/snprintf.c b/src/stdio/snprintf.c
index ce92c1a..3f28237 100644
--- a/src/stdio/snprintf.c
+++ b/src/stdio/snprintf.c
@@ -67,10 +67,16 @@ static const struct {
 	const char *expect;
 } fp_tests[] = {
 	/* basic form, handling of exponent/precision for 0 */
+	{ "%a", 0.0, "0x0p+0" },
 	{ "%e", 0.0, "0.000000e+00" },
 	{ "%f", 0.0, "0.000000" },
 	{ "%g", 0.0, "0" },
 	{ "%#g", 0.0, "0.00000" },
+	{ "%la", 0.0, "0x0p+0" },
+	{ "%le", 0.0, "0.000000e+00" },
+	{ "%lf", 0.0, "0.000000" },
+	{ "%lg", 0.0, "0" },
+	{ "%#lg", 0.0, "0.00000" },
 
 	/* rounding */
 	{ "%f", 1.1, "1.100000" },
@@ -81,6 +87,7 @@ static const struct {
 	{ "%.4f", 1.06125, "1.0612" },
 	{ "%.2f", 1.375, "1.38" },
 	{ "%.1f", 1.375, "1.4" },
+	{ "%.1lf", 1.375, "1.4" },
 	{ "%.15f", 1.1, "1.100000000000000" },
 	{ "%.16f", 1.1, "1.1000000000000001" },
 	{ "%.17f", 1.1, "1.10000000000000009" },