diff --git a/lib/src/alloc.c b/lib/src/alloc.c
index a6adaf5e..9235d1e4 100644
--- a/lib/src/alloc.c
+++ b/lib/src/alloc.c
@@ -1,6 +1,12 @@
 #include "alloc.h"
 #include <stdlib.h>
 
+#ifdef _WIN32
+#define PUBLIC __declspec(dllexport)
+#else
+#define PUBLIC __attribute__((visibility("default")))
+#endif
+
 static void *ts_malloc_default(size_t size) {
   void *result = malloc(size);
   if (size > 0 && !result) {
@@ -29,10 +35,10 @@ static void *ts_realloc_default(void *buffer, size_t size) {
 }
 
 // Allow clients to override allocation functions dynamically
-void *(*ts_current_malloc)(size_t) = ts_malloc_default;
-void *(*ts_current_calloc)(size_t, size_t) = ts_calloc_default;
-void *(*ts_current_realloc)(void *, size_t) = ts_realloc_default;
-void (*ts_current_free)(void *) = free;
+PUBLIC void *(*ts_current_malloc)(size_t) = ts_malloc_default;
+PUBLIC void *(*ts_current_calloc)(size_t, size_t) = ts_calloc_default;
+PUBLIC void *(*ts_current_realloc)(void *, size_t) = ts_realloc_default;
+PUBLIC void (*ts_current_free)(void *) = free;
 
 void ts_set_allocator(
   void *(*new_malloc)(size_t size),
diff --git a/lib/src/parser.h b/lib/src/parser.h
index 17b4fde9..2703c64f 100644
--- a/lib/src/parser.h
+++ b/lib/src/parser.h
@@ -20,6 +20,29 @@ typedef uint16_t TSFieldId;
 typedef struct TSLanguage TSLanguage;
 #endif
 
+extern void *(*ts_current_malloc)(size_t);
+extern void *(*ts_current_calloc)(size_t, size_t);
+extern void *(*ts_current_realloc)(void *, size_t);
+extern void (*ts_current_free)(void *);
+
+// Allow consumers to use allocation functions
+#ifndef ts_malloc
+#define ts_malloc  ts_current_malloc
+#define malloc     ts_current_malloc
+#endif
+#ifndef ts_calloc
+#define ts_calloc  ts_current_calloc
+#define calloc     ts_current_calloc
+#endif
+#ifndef ts_realloc
+#define ts_realloc ts_current_realloc
+#define realloc    ts_current_realloc
+#endif
+#ifndef ts_free
+#define ts_free    ts_current_free
+#define free       ts_current_free
+#endif
+
 typedef struct {
   TSFieldId field_id;
   uint8_t child_index;