diff --git a/src/frontend/parse-bison-y.h b/src/frontend/parse-bison-y.h
index aa1c32cc4..4b39281f1 100644
--- a/src/frontend/parse-bison-y.h
+++ b/src/frontend/parse-bison-y.h
@@ -14,3 +14,6 @@ extern struct pnode *PP_mksnode(const char *string);
 #if defined (_MSC_VER)
 # define __func__ __FUNCTION__ /* __func__ is C99, but MSC can't */
 #endif
+
+#define malloc tmalloc
+#define free txfree
diff --git a/src/maths/cmaths/cmath1.c b/src/maths/cmaths/cmath1.c
index d5d2b7734..0b9bb1abc 100644
--- a/src/maths/cmaths/cmath1.c
+++ b/src/maths/cmaths/cmath1.c
@@ -731,7 +731,7 @@ cx_sortorder(void *data, short int type, int length, int *newlength, short int *
     int i;
 
     amplitude_index_t *array_amplitudes;
-    array_amplitudes = (amplitude_index_t *) malloc(sizeof(amplitude_index_t) * (size_t) length);
+    array_amplitudes = (amplitude_index_t *) tmalloc(sizeof(amplitude_index_t) * (size_t) length);
 
     *newlength = length;
     *newtype = VF_REAL;
diff --git a/src/spicelib/devices/bsimsoi/b4soitemp.c b/src/spicelib/devices/bsimsoi/b4soitemp.c
index 052748ba0..36cf13826 100644
--- a/src/spicelib/devices/bsimsoi/b4soitemp.c
+++ b/src/spicelib/devices/bsimsoi/b4soitemp.c
@@ -185,7 +185,7 @@ B4SOItemp(
             }
 
             if (Size_Not_Found)
-            {   pParam = (struct b4soiSizeDependParam *)malloc(
+            {   pParam = (struct b4soiSizeDependParam *)tmalloc(
                     sizeof(struct b4soiSizeDependParam));
             if (pLastKnot == NULL)
                 model->pSizeDependParamKnot = pParam;
diff --git a/src/spicelib/parser/inpptree-parser-y.h b/src/spicelib/parser/inpptree-parser-y.h
index e72b39442..24acd8d36 100644
--- a/src/spicelib/parser/inpptree-parser-y.h
+++ b/src/spicelib/parser/inpptree-parser-y.h
@@ -13,3 +13,6 @@ extern INPparseNode *PT_mksnode(const char *string, void *ckt);
 #if defined (_MSC_VER)
 # define __func__ __FUNCTION__ /* __func__ is C99, but MSC can't */
 #endif
+
+#define malloc tmalloc
+#define free txfree