diff --git a/src/logo/logo.c b/src/logo/logo.c
index 78a430bf9..6cb49d1e9 100644
--- a/src/logo/logo.c
+++ b/src/logo/logo.c
@@ -211,7 +211,7 @@ static bool logoHasName(const FFlogo* logo, const FFstrbuf* name, bool small)
 
 static const FFlogo* logoGetBuiltin(const FFstrbuf* name, FFLogoSize size)
 {
-    if (name->length == 0)
+    if (name->length == 0 || !isalpha(name->chars[0]))
         return NULL;
 
     for(const FFlogo* logo = ffLogoBuiltins[toupper(name->chars[0]) - 'A']; *logo->names; ++logo)