diff --git a/source/main.c b/source/main.c
index 2002b1c..0aa9871 100644
--- a/source/main.c
+++ b/source/main.c
@@ -20,6 +20,8 @@
 
 extern int tbsp_yy_init(void);
 extern int tbsp_yy_deinit(void);
+extern int tbsp_c_yy_init(void);
+extern int tbsp_c_yy_deinit(void);
 
 char * language = NULL;
 char * verbatim = NULL;
@@ -107,6 +109,7 @@ signed main(const int argc, const char * const * const argv) {
 
     tbsp_yy_init();
     tbsp_tab_init();
+    tbsp_c_yy_init();
 
     CHECKED_FOPEN(yyin,  input_file_name,  "r");
     CHECKED_FOPEN(yyout, output_file_name, "w");
@@ -123,6 +126,7 @@ signed main(const int argc, const char * const * const argv) {
     }
 
     tbsp_yy_deinit();
+    tbsp_c_yy_deinit();
     free(output_file_name);
     free(input_file_name);
     free(verbatim);
diff --git a/source/tbsp.l b/source/tbsp.l
index 0a4043f..c34db3a 100644
--- a/source/tbsp.l
+++ b/source/tbsp.l
@@ -94,6 +94,7 @@ int tbsp_yy_init(void) {
 }
 
 int tbsp_yy_deinit(void) {
+    yy_delete_buffer(YY_CURRENT_BUFFER);
     sdsfree(buffer);
     return 0;
 }
diff --git a/source/tbsp_c.l b/source/tbsp_c.l
index e0a1a9d..ac8680c 100644
--- a/source/tbsp_c.l
+++ b/source/tbsp_c.l
@@ -114,10 +114,6 @@ identifier [a-zA-z][a-zA-z0-9_]*
 %%
 
 char * tbsp_c_expland_code(const char * const s) {
-    kv_init(query);
-    buffer = sdsnew("");
-    query_string_buffer = sdsnew("");
-
 	YY_BUFFER_STATE const b = yy_scan_string(s);
     tbsp_c_lex();
 	tbsp_c__delete_buffer(b);
@@ -137,3 +133,17 @@ char * expand_c_query(void) {
 
     return r;
 }
+
+int tbsp_c_yy_init(void) {
+    kv_init(query);
+    buffer = sdsnew("");
+    query_string_buffer = sdsnew("");
+    return 0;
+}
+
+int tbsp_c_yy_deinit(void) {
+    tbsp_c__delete_buffer(YY_CURRENT_BUFFER);
+    sdsfree(buffer);
+    sdsfree(query_string_buffer);
+    return 0;
+}