diff --git a/src/renderd_config.c b/src/renderd_config.c
index a32266d5..85d7c21c 100644
--- a/src/renderd_config.c
+++ b/src/renderd_config.c
@@ -400,6 +400,11 @@ void process_renderd_sections(const char *config_file_name, renderd_config *conf
 				exit(7);
 			}
 
+			if (configs_dest[renderd_section_num].name != NULL) {
+				g_logger(G_LOG_LEVEL_CRITICAL, "Duplicate renderd config section names for section %i: %s & %s", renderd_section_num, configs_dest[renderd_section_num].name, section);
+				exit(7);
+			}
+
 			copy_string(section, &configs_dest[renderd_section_num].name, renderd_strlen + 2);
 
 			process_config_int(ini, section, "ipport", &configs_dest[renderd_section_num].ipport, 0);
diff --git a/tests/renderd_config_test.cpp b/tests/renderd_config_test.cpp
index 1c173a96..dd848fc8 100644
--- a/tests/renderd_config_test.cpp
+++ b/tests/renderd_config_test.cpp
@@ -573,4 +573,26 @@ TEST_CASE("renderd_config config parser", "specific testing")
 		found = err_log_lines.find("Specified socketname (" + renderd_socketname + ") exceeds maximum allowed length of " + std::to_string(renderd_socketname_maxlen) + ".");
 		REQUIRE(found > -1);
 	}
+
+	SECTION("renderd.conf duplicate renderd section names", "should return 7") {
+		std::string renderd_conf = std::tmpnam(nullptr);
+		std::ofstream renderd_conf_file;
+		renderd_conf_file.open(renderd_conf);
+		renderd_conf_file << "[mapnik]\n[map]\n";
+		renderd_conf_file << "[renderd0]\n[renderd]\n";
+		renderd_conf_file.close();
+
+		std::string option = "--config " + renderd_conf;
+		std::string command = test_binary + " " + option;
+
+		// flawfinder: ignore
+		FILE *pipe = popen(command.c_str(), "r");
+		int status = pclose(pipe);
+		std::remove(renderd_conf.c_str());
+		REQUIRE(WEXITSTATUS(status) == 7);
+
+		err_log_lines = read_stderr();
+		found = err_log_lines.find("Duplicate renderd config section names for section 0: renderd0 & renderd");
+		REQUIRE(found > -1);
+	}
 }