diff --git a/src/options/display.c b/src/options/display.c
index 117cd689f..c29370864 100644
--- a/src/options/display.c
+++ b/src/options/display.c
@@ -392,6 +392,8 @@ bool ffOptionsParseDisplayCommandLine(FFOptionsDisplay* options, const char* key
         const char* subkey = key + strlen("--freq-");
         if(ffStrEqualsIgnCase(subkey, "ndigits"))
             options->freqNdigits = (int8_t) ffOptionParseInt32(key, value);
+        else
+            return false;
     }
     else
         return false;