diff --git a/test.sh b/test.sh
index 3329a5f..979f94c 100755
--- a/test.sh
+++ b/test.sh
@@ -3,7 +3,7 @@ FILES=*/*/*.cpp
 
 for f in $FILES
 do
-  gcc "$f" -lstdc++ -o /dev/null
+  gcc "$f" -lstdc++ -lm -o /dev/null
   status=$?
   [ $status -eq 0 ] && echo "$f was compiled successfully" || echo "Compilation of $f failed"
 done