diff --git a/Makefile.meson b/Makefile.meson
index cb23643f..5bb913d1 100644
--- a/Makefile.meson
+++ b/Makefile.meson
@@ -45,7 +45,9 @@ test-verbose-if-fail: all
 	@cd $(BUILDDIR); $(MESON) test || $(MESON) test --verbose
 
 test-valgrind: $(BUILDDIR)
-	@cd $(BUILDDIR); $(MESON) test --wrap='valgrind --leak-check=full --error-exitcode=1'
+	@cd $(BUILDDIR); $(MESON) test \
+		--wrap='valgrind --leak-check=full --error-exitcode=1' \
+		--timeout-multiplier 100
 
 test-helgrind: $(BUILDDIR)
 	@cd $(BUILDDIR); $(MESON) test --wrap='valgrind --tool=helgrind --error-exitcode=1'