diff --git a/src/core/util/Database.cc b/src/core/util/Database.cc
index bf18560d..3ca32ed6 100644
--- a/src/core/util/Database.cc
+++ b/src/core/util/Database.cc
@@ -82,7 +82,7 @@ std::vector<Database::Variant> Database::get_variants(const std::string &variant
 		  "	 variant varchar(255) NOT NULL,"
 		  "	 benchmark varchar(255) NOT NULL,"
 		  "	 PRIMARY KEY (id),"
-		  "UNIQUE KEY variant (variant,benchmark))")) {
+		  "UNIQUE KEY variant (variant,benchmark)) ENGINE=MyISAM")) {
 		return result;
 	}
 
@@ -131,7 +131,7 @@ int Database::get_fspmethod_id(const std::string &method)
 	if (!query("CREATE TABLE IF NOT EXISTS fspmethod ("
 		  "	 id int(11) NOT NULL AUTO_INCREMENT,"
 		  "	 method varchar(255) NOT NULL,"
-		  "	 PRIMARY KEY (id), UNIQUE KEY method (method))")) {
+		  "	 PRIMARY KEY (id), UNIQUE KEY method (method)) ENGINE=MyISAM")) {
 		return 0;
 	}
 
diff --git a/src/experiments/ecos_kernel_test/campaign.cc b/src/experiments/ecos_kernel_test/campaign.cc
index 79a96c61..ac665de9 100644
--- a/src/experiments/ecos_kernel_test/campaign.cc
+++ b/src/experiments/ecos_kernel_test/campaign.cc
@@ -265,7 +265,7 @@ bool EcosKernelTestCampaign::run()
 	   << "  AND p.fspmethod_id = " << fspmethod_id << " "
 	   << "  AND (" << sql_variants << ") ";
 #elif 1
-	if (!db->query("CREATE TEMPORARY TABLE done_pilots (id INT UNSIGNED NOT NULL PRIMARY KEY)")) return false;
+	if (!db->query("CREATE TEMPORARY TABLE done_pilots (id INT UNSIGNED NOT NULL PRIMARY KEY) ENGINE=MyISAM")) return false;
 	ss << "INSERT INTO done_pilots SELECT pilot_id FROM " << m_result_table << " GROUP BY pilot_id HAVING SUM(bit_width) = 8";
 	if (!db->query(ss.str().c_str())) return false;
 	unsigned finished_jobs = db->affected_rows();