diff --git a/lib/include/srslte/phy/io/format.h b/lib/include/srslte/phy/io/format.h
index df24df4a7..e273e31e7 100644
--- a/lib/include/srslte/phy/io/format.h
+++ b/lib/include/srslte/phy/io/format.h
@@ -22,7 +22,8 @@
 #ifndef SRSLTE_FORMAT_H
 #define SRSLTE_FORMAT_H
 
-typedef enum { 
+typedef enum {
+  SRSLTE_TEXT,
   SRSLTE_FLOAT, 
   SRSLTE_COMPLEX_FLOAT, 
   SRSLTE_COMPLEX_SHORT, 
diff --git a/lib/src/phy/io/filesink.c b/lib/src/phy/io/filesink.c
index 3b2bfd2f4..27458941d 100644
--- a/lib/src/phy/io/filesink.c
+++ b/lib/src/phy/io/filesink.c
@@ -53,6 +53,9 @@ int srslte_filesink_write(srslte_filesink_t *q, void *buffer, int nsamples) {
   int size;
 
   switch(q->type) {
+  case SRSLTE_TEXT:
+    fprintf(q->f, "%s",(char *)buffer);
+    break;
   case SRSLTE_FLOAT:
     for (i=0;i<nsamples;i++) {
       fprintf(q->f,"%g\n",fbuf[i]);