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-rw-r--r--src/plugins/c_api.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/plugins/c_api.h b/src/plugins/c_api.h
index 2f541e2f..40281fcf 100644
--- a/src/plugins/c_api.h
+++ b/src/plugins/c_api.h
@@ -32,6 +32,9 @@
  *
  */
 
+#ifndef PLUGINS_C_API_H
+#define PLUGINS_C_API_H
+
 #include <glib.h>
 
 void c_api_init(void);
@@ -39,3 +42,5 @@ void c_api_init(void);
 void c_command_callback(PluginCommand *command, gchar **args);
 void c_timed_callback(PluginTimedFunction *timed_function);
 void c_window_callback(PluginWindowCallback *window_callback, char *tag, char *line);
+
+#endif