diff --git a/units-1.88-coverity.patch b/units-1.88-coverity.patch
index 412e2d5..cc46992 100644
--- a/units-1.88-coverity.patch
+++ b/units-1.88-coverity.patch
@@ -49,17 +49,16 @@ index cdda76a..c4230c9 100644
  	    if (readerr == E_FILE) {
  	      if (errfile)
  		fprintf(errfile, "%s: unable to open included file '%s' at line %d of file '%s\n", progname, includefile, linenum, file);
-@@ -1381,7 +1384,8 @@ subunitroot(int n,char *in[], char *out[])
+@@ -1381,7 +1384,7 @@ subunitroot(int n,char *in[], char *out[])
    char **ptr,**current;
    int count;
  
 -  for(current = in;*current && *current==NULLUNIT;current++);
 +  for(current = in;*current==NULLUNIT;current++)
-+  if (!*current) return E_NOTROOT;
    count = 0;
    for(ptr=in;*ptr;ptr++){
      if (*ptr==NULLUNIT) continue;
-@@ -2618,7 +2622,7 @@ Typing 'search text' will show units whose names contain 'text'.\n\n",
+@@ -2618,7 +2621,7 @@ Typing 'search text' will show units whose names contain 'text'.\n\n",
  int
  main(int argc, char **argv)
  {
diff --git a/units.spec b/units.spec
index 4d94507..761f39e 100644
--- a/units.spec
+++ b/units.spec
@@ -1,7 +1,7 @@
 Summary: A utility for converting amounts from one unit to another
 Name: units
 Version: 1.88
-Release: 4%{?dist}
+Release: 5%{?dist}
 Source: ftp://ftp.gnu.org/gnu/units/%{name}-%{version}.tar.gz
 URL: http://www.gnu.org/software/units/units.html
 License: GPLv3+
@@ -59,6 +59,9 @@ fi
 %{_mandir}/man1/*
 
 %changelog
+* Thu Nov 17 2011 Kamil Dudka <kdudka@redhat.com> - 1.88-5
+- improve the units-1.88-coverity.patch (thanks to Adrian Mariano)
+
 * Wed Nov 16 2011 Kamil Dudka <kdudka@redhat.com> - 1.88-4
 - fix code defects found by Coverity