diff --git a/.gitignore b/.gitignore
index 654591f3..cef71a87 100644
--- a/.gitignore
+++ b/.gitignore
@@ -36,3 +36,4 @@ tests/once.timestamp
 tests/test.out
 tests/tz.out
 www/Makefile
+_cppcheck
diff --git a/src/Makefile.in b/src/Makefile.in
index 19be79cb..5424bfda 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -109,7 +109,9 @@ depend:
 # distributions, etc.
 
 cppcheck:
-	cppcheck -j`nproc` -v --force --enable=all --suppress=missingIncludeSystem --suppress=ConfigurationNotChecked --suppress=unmatchedSuppression --suppress=variableScope --inline-suppr --check-level=exhaustive .
+	mkdir -p ../_cppcheck
+	cppcheck -j`nproc` -v --force --enable=all --suppress=missingIncludeSystem --suppress=ConfigurationNotChecked --suppress=unmatchedSuppression --suppress=variableScope --inline-suppr --check-level=exhaustive --cppcheck-build-dir=../_cppcheck .
+	-rm -rf ../_cppcheck
 
 # Build a tar file based on all files checked into git.
 distro: