diff --git a/src/engine/sysDef.cpp b/src/engine/sysDef.cpp
index 8f6aa6021..7c92997fa 100644
--- a/src/engine/sysDef.cpp
+++ b/src/engine/sysDef.cpp
@@ -1977,7 +1977,7 @@ void DivEngine::registerSystems() {
   );
 
   sysDefs[DIV_SYSTEM_ESFM]=new DivSysDef(
-    "ESS ES1xxx-series (ESFM)", NULL, 0xd0, 0, 18, true, false, 0, false, 0,
+    "ESS ES1xxx series (ESFM)", NULL, 0xd0, 0, 18, true, false, 0, false, 0,
     "A unique FM synth featured in PC sound cards.\nBased on the OPL3 design, but with lots of its features extended.",
     {"FM 1", "FM 2", "FM 3", "FM 4", "FM 5", "FM 6", "FM 7", "FM 8", "FM 9", "FM 10", "FM 11", "FM 12", "FM 13", "FM 14", "FM 15", "FM 16", "FM 17", "FM 18"},
     {"1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18"},