diff --git a/firmware/filesystem/util.c b/firmware/filesystem/util.c
index c172c43..a5c01b5 100644
--- a/firmware/filesystem/util.c
+++ b/firmware/filesystem/util.c
@@ -105,9 +105,16 @@ int readFile(char * filename, char * data, int len){
 int readTextFile(char * filename, char * data, int len){
     int readbytes;
 
+    if(len<1) return -1;
     readbytes=readFile(filename,data,len-1);
-    if(len>=0)
-        data[readbytes]=0;
+    if(readbytes<0){
+        data[0]=0;
+        return readbytes;
+    };
+    data[readbytes]=0;
+    while(readbytes>0 && data[readbytes-1]<0x20){
+        data[--readbytes]=0;
+    };
     return readbytes;
 };