diff --git a/src/clib/ctfunc.cpp b/src/clib/ctfunc.cpp
index 55bc5c74a..1f538641d 100644
--- a/src/clib/ctfunc.cpp
+++ b/src/clib/ctfunc.cpp
@@ -103,6 +103,16 @@ extern "C" {
         }
     }
 
+    int func_clear()
+    {
+        try {
+            FuncCabinet::clear();
+            return 0;
+        } catch (...) {
+            return handleAllExceptions(-1, ERR);
+        }
+    }
+
     int func_copy(int i)
     {
         try {
diff --git a/src/clib/ctfunc.h b/src/clib/ctfunc.h
index 00b6bab40..a3311eab8 100644
--- a/src/clib/ctfunc.h
+++ b/src/clib/ctfunc.h
@@ -9,6 +9,7 @@
 extern "C" {
     CANTERA_CAPI int func_new(int type, size_t n, size_t lenp, double* p);
     CANTERA_CAPI int func_del(int i);
+    CANTERA_CAPI int func_clear();
     CANTERA_CAPI int func_copy(int i);
     CANTERA_CAPI int func_assign(int i, int j);
     CANTERA_CAPI double func_value(int i, double t);
diff --git a/src/clib/ctmultiphase.cpp b/src/clib/ctmultiphase.cpp
index 5a5f88689..27336200e 100644
--- a/src/clib/ctmultiphase.cpp
+++ b/src/clib/ctmultiphase.cpp
@@ -36,6 +36,16 @@ extern "C" {
         }
     }
 
+    int mix_clear()
+    {
+        try {
+            mixCabinet::clear();
+            return 0;
+        } catch (...) {
+            return handleAllExceptions(-1, ERR);
+        }
+    }
+
     int mix_copy(int i)
     {
         try {
diff --git a/src/clib/ctmultiphase.h b/src/clib/ctmultiphase.h
index 984787795..d20c20c74 100644
--- a/src/clib/ctmultiphase.h
+++ b/src/clib/ctmultiphase.h
@@ -9,6 +9,7 @@
 extern "C" {
     CANTERA_CAPI int mix_new();
     CANTERA_CAPI int mix_del(int i);
+    CANTERA_CAPI int mix_clear();
     CANTERA_CAPI int mix_copy(int i);
     CANTERA_CAPI int mix_assign(int i, int j);
     CANTERA_CAPI int mix_addPhase(int i, int j, double moles);
diff --git a/src/clib/ctreactor.cpp b/src/clib/ctreactor.cpp
index 59ed14095..8e4664c94 100644
--- a/src/clib/ctreactor.cpp
+++ b/src/clib/ctreactor.cpp
@@ -656,4 +656,17 @@ extern "C" {
             return handleAllExceptions(-1, ERR);
         }
     }
+
+    int clear_reactors()
+    {
+        try {
+            ReactorCabinet::clear();
+            NetworkCabinet::clear();
+            FlowDeviceCabinet::clear();
+            WallCabinet::clear();
+            return 0;
+        } catch (...) {
+            return handleAllExceptions(-1, ERR);
+        }
+    }
 }
diff --git a/src/clib/ctreactor.h b/src/clib/ctreactor.h
index 610bd04fa..8a3a2c4f8 100644
--- a/src/clib/ctreactor.h
+++ b/src/clib/ctreactor.h
@@ -71,6 +71,8 @@ extern "C" {
     CANTERA_CAPI int wall_setEmissivity(int i, double epsilon);
     CANTERA_CAPI int wall_ready(int i);
     CANTERA_CAPI int wall_addSensitivityReaction(int i, int lr, int rxn);
+
+    CANTERA_CAPI int clear_reactors();
 }
 
 #endif
diff --git a/src/clib/ctrpath.cpp b/src/clib/ctrpath.cpp
index 330973f1c..c20694224 100644
--- a/src/clib/ctrpath.cpp
+++ b/src/clib/ctrpath.cpp
@@ -308,4 +308,15 @@ extern "C" {
             return handleAllExceptions(-1, ERR);
         }
     }
+
+    int clear_rxnpath()
+    {
+        try {
+            DiagramCabinet::clear();
+            BuilderCabinet::clear();
+            return 0;
+        } catch (...) {
+            return handleAllExceptions(-1, ERR);
+        }
+    }
 }
diff --git a/src/clib/ctrpath.h b/src/clib/ctrpath.h
index eca30db14..95be4bbba 100644
--- a/src/clib/ctrpath.h
+++ b/src/clib/ctrpath.h
@@ -34,6 +34,8 @@ extern "C" {
     CANTERA_CAPI int rbuild_init(int i, char* logfile, int k);
     CANTERA_CAPI int rbuild_build(int i, int k, char* el, char* dotfile,
                                   int idiag, int iquiet);
+
+    CANTERA_CAPI int clear_rxnpath();
 }
 
 #endif
diff --git a/src/matlab/ctfunctions.cpp b/src/matlab/ctfunctions.cpp
index f62ed0d9f..17fe73f71 100644
--- a/src/matlab/ctfunctions.cpp
+++ b/src/matlab/ctfunctions.cpp
@@ -5,8 +5,12 @@
 #include <iostream>
 
 #include "clib/ct.h"
+#include "clib/ctreactor.h"
 #include "clib/ctonedim.h"
+#include "clib/ctmultiphase.h"
 #include "clib/ctxml.h"
+#include "clib/ctfunc.h"
+#include "clib/ctrpath.h"
 #include "ctmatutils.h"
 
 using namespace std;
@@ -66,8 +70,12 @@ void ctfunctions(int nlhs, mxArray* plhs[],
     case 4:
         iok = domain_clear();
         iok = sim1D_clear();
+        iok = mix_clear();
         iok = xml_clear();
+        iok = func_clear();
         iok = clearStorage();
+        iok = clear_reactors();
+        iok = clear_rxnpath();
         break;
 
     default:
diff --git a/test/matlab/testImport.m b/test/matlab/testImport.m
index d41bbc8a1..c5d395bcd 100644
--- a/test/matlab/testImport.m
+++ b/test/matlab/testImport.m
@@ -9,3 +9,5 @@ assertEqual(length(dkm), nSpecies(gas))
 function testImportCTI
 gas = importPhase('h2o2.cti');
 assertEqual(temperature(gas), 300)
+
+cleanup()