diff -uprN paps-0.6.8_raw/src/paps.c paps-0.6.8/src/paps.c
--- paps-0.6.8_raw/src/paps.c	2020-01-15 10:15:32.951498063 +0000
+++ paps-0.6.8/src/paps.c	2020-01-15 10:16:26.292439298 +0000
@@ -836,7 +836,10 @@ split_text_into_paragraphs (PangoContext
 				      goto fail;
 			      }
 			      for (i = 0; i < len; i++) {
-				      wwidth += wcwidth(wtext[i]);
+				      gssize w = wcwidth(wtext[i]);
+
+				      if (w >= 0)
+					      wwidth += w;
 				      if (wwidth > col)
 					      break;
 				      wnewtext[i] = wtext[i];