diff --git a/tools/check-formatting.sh b/tools/check-formatting.sh
index 0d55a420..c68287d6 100755
--- a/tools/check-formatting.sh
+++ b/tools/check-formatting.sh
@@ -10,7 +10,7 @@ ALL_OK=1
 
 for f in ${SOURCES[@]}
 do
-    clang-format -n $f 2>&1 | grep -q ^
+    clang-format -n $f 2>&1 | tee -a /tmp/clang-format-output | grep -q ^
     RESULT=$?
     if [ "$RESULT" -eq "0" ]
     then
@@ -25,4 +25,7 @@ then
     exit 0
 fi
 
+cat /tmp/clang-format-output
+rm /tmp/clang-format-output
+
 exit 1