diff --git a/index.d.ts b/index.d.ts
index 8eb48b6..85adf29 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -471,7 +471,7 @@ type LevelType = 'AF' | 'PREAMP' | 'ATT' | 'RF' | 'SQL' | 'RFPOWER' | 'MICGAIN'
 /**
  * Function type
  */
-type FunctionType = 'FAGC' | 'NB' | 'COMP' | 'VOX' | 'TONE' | 'TSQL' | 'SBKIN' | 
+type FunctionType = 'FAGC' | 'NB' | 'COMP' | 'VOX' | 'TONE' | 'TSQL' | 'CSQL' | 'SBKIN' | 
                     'FBKIN' | 'ANF' | 'NR' | 'AIP' | 'APF' | 'TUNER' | 'XIT' | 
                     'RIT' | 'LOCK' | 'MUTE' | 'VSC' | 'REV' | 'SQL' | 'ABM' | 
                     'BC' | 'MBC' | 'AFC' | 'SATMODE' | 'SCOPE' | 'RESUME' | 'TRANSCEIVE' |
diff --git a/src/hamlib.cpp b/src/hamlib.cpp
index 144851d..96df6f4 100644
--- a/src/hamlib.cpp
+++ b/src/hamlib.cpp
@@ -245,7 +245,7 @@ struct NamedBit {
 
 static const NamedBit kMemoryFunctionBits[] = {
   {"FAGC", SHIM_RIG_FUNC_FAGC}, {"NB", SHIM_RIG_FUNC_NB}, {"COMP", SHIM_RIG_FUNC_COMP},
-  {"VOX", SHIM_RIG_FUNC_VOX}, {"TONE", SHIM_RIG_FUNC_TONE}, {"TSQL", SHIM_RIG_FUNC_TSQL},
+  {"VOX", SHIM_RIG_FUNC_VOX}, {"TONE", SHIM_RIG_FUNC_TONE}, {"TSQL", SHIM_RIG_FUNC_TSQL}, {"CSQL", SHIM_RIG_FUNC_CSQL},
   {"SBKIN", SHIM_RIG_FUNC_SBKIN}, {"FBKIN", SHIM_RIG_FUNC_FBKIN}, {"ANF", SHIM_RIG_FUNC_ANF},
   {"NR", SHIM_RIG_FUNC_NR}, {"AIP", SHIM_RIG_FUNC_AIP}, {"APF", SHIM_RIG_FUNC_APF},
   {"MON", SHIM_RIG_FUNC_MON}, {"MN", SHIM_RIG_FUNC_MN}, {"RF", SHIM_RIG_FUNC_RF},
@@ -4266,6 +4266,8 @@ Napi::Value NodeHamLib::SetFunction(const Napi::CallbackInfo & info) {
     funcType = SHIM_RIG_FUNC_TONE;
   } else if (funcTypeStr == "TSQL") {
     funcType = SHIM_RIG_FUNC_TSQL;
+  } else if (funcTypeStr == "CSQL") {
+    funcType = SHIM_RIG_FUNC_CSQL;
   } else if (funcTypeStr == "SBKIN") {
     funcType = SHIM_RIG_FUNC_SBKIN;
   } else if (funcTypeStr == "FBKIN") {
@@ -4352,6 +4354,8 @@ Napi::Value NodeHamLib::GetFunction(const Napi::CallbackInfo & info) {
     funcType = SHIM_RIG_FUNC_TONE;
   } else if (funcTypeStr == "TSQL") {
     funcType = SHIM_RIG_FUNC_TSQL;
+  } else if (funcTypeStr == "CSQL") {
+    funcType = SHIM_RIG_FUNC_CSQL;
   } else if (funcTypeStr == "SBKIN") {
     funcType = SHIM_RIG_FUNC_SBKIN;
   } else if (funcTypeStr == "FBKIN") {
@@ -4427,6 +4431,7 @@ Napi::Value NodeHamLib::GetSupportedFunctions(const Napi::CallbackInfo & info) {
       if (functions & SHIM_RIG_FUNC_VOX) values->push_back("VOX");
       if (functions & SHIM_RIG_FUNC_TONE) values->push_back("TONE");
       if (functions & SHIM_RIG_FUNC_TSQL) values->push_back("TSQL");
+      if (functions & SHIM_RIG_FUNC_CSQL) values->push_back("CSQL");
       if (functions & SHIM_RIG_FUNC_SBKIN) values->push_back("SBKIN");
       if (functions & SHIM_RIG_FUNC_FBKIN) values->push_back("FBKIN");
       if (functions & SHIM_RIG_FUNC_ANF) values->push_back("ANF");
diff --git a/src/shim/hamlib_shim.h b/src/shim/hamlib_shim.h
index 208f726..3fb2545 100644
--- a/src/shim/hamlib_shim.h
+++ b/src/shim/hamlib_shim.h
@@ -286,6 +286,7 @@ typedef void* hamlib_shim_handle_t;
 #define SHIM_RIG_FUNC_TBURST  (1ULL << 29)
 #define SHIM_RIG_FUNC_TUNER   (1ULL << 30)
 #define SHIM_RIG_FUNC_XIT     (1ULL << 31)
+#define SHIM_RIG_FUNC_CSQL    (1ULL << 33)
 #define SHIM_RIG_FUNC_TRANSCEIVE (1ULL << 42)
 #define SHIM_RIG_FUNC_SPECTRUM (1ULL << 43)
 #define SHIM_RIG_FUNC_SPECTRUM_HOLD (1ULL << 44)