diff --git a/src/tests/util.t.cpp b/src/tests/util.t.cpp
index 4cb9d43ea..1d16798c8 100644
--- a/src/tests/util.t.cpp
+++ b/src/tests/util.t.cpp
@@ -34,7 +34,7 @@ Context context;
 ////////////////////////////////////////////////////////////////////////////////
 int main (int argc, char** argv)
 {
-  UnitTest t (19);
+  UnitTest t (21);
 
   // TODO bool confirm (const std::string&);
   // TODO int confirm3 (const std::string&);
@@ -45,7 +45,9 @@ int main (int argc, char** argv)
   // std::string formatBytes (size_t);
   t.is (formatBytes (0), "0 B", "0 -> 0 B");
 
-  t.is (formatBytes (999),  "999 B", "999 -> 999 B");
+  t.is (formatBytes (994),  "994 B", "994 -> 994 B");
+  t.is (formatBytes (995),  "1.0 KiB", "995 -> 1.0 KiB");
+  t.is (formatBytes (999),  "1.0 KiB", "999 -> 1.0 KiB");
   t.is (formatBytes (1000), "1.0 KiB", "1000 -> 1.0 KiB");
   t.is (formatBytes (1001), "1.0 KiB", "1001 -> 1.0 KiB");
 
diff --git a/src/util.cpp b/src/util.cpp
index 615553e65..bd3d656f6 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -184,9 +184,9 @@ std::string formatBytes (size_t bytes)
 {
   char formatted[24];
 
-       if (bytes >= 1000000000) sprintf (formatted, "%.1f GiB", (bytes / 1000000000.0));
-  else if (bytes >=    1000000) sprintf (formatted, "%.1f MiB", (bytes /    1000000.0));
-  else if (bytes >=       1000) sprintf (formatted, "%.1f KiB", (bytes /       1000.0));
+       if (bytes >=  995000000) sprintf (formatted, "%.1f GiB", (bytes / 1000000000.0));
+  else if (bytes >=     995000) sprintf (formatted, "%.1f MiB", (bytes /    1000000.0));
+  else if (bytes >=        995) sprintf (formatted, "%.1f KiB", (bytes /       1000.0));
   else                          sprintf (formatted, "%d B", (int)bytes                );
 
   return commify (formatted);