diff --git a/src/emerge.cpp b/src/emerge.cpp
index 443d7038..95a09321 100644
--- a/src/emerge.cpp
+++ b/src/emerge.cpp
@@ -156,6 +156,11 @@ EmergeManager::~EmergeManager() {
 	mglist.clear();
 
 	delete biomedef;
+
+	if (params.sparams) {
+		delete params.sparams;
+		params.sparams = NULL;
+	}
 }