diff --git a/lib/strto.c b/lib/strto.c
index 55ff9f7437..1ac2b09c72 100644
--- a/lib/strto.c
+++ b/lib/strto.c
@@ -22,9 +22,22 @@ static const char *_parse_integer_fixup_radix(const char *s, unsigned int *base)
 				*base = 16;
 			else
 				*base = 8;
-		} else
+		} else {
+			int i = 0;
+			char var;
+
 			*base = 10;
+
+			do {
+				var = tolower(s[i++]);
+				if (var >= 'a' && var <= 'f') {
+					*base = 16;
+					break;
+				}
+			} while (var);
+		}
 	}
+
 	if (*base == 16 && s[0] == '0' && tolower(s[1]) == 'x')
 		s += 2;
 	return s;