diff --git a/src/deque.h b/src/deque.h
index 23f1179..d31f451 100644
--- a/src/deque.h
+++ b/src/deque.h
@@ -15,6 +15,10 @@
 #ifndef CMC_DEQUE_H
 #define CMC_DEQUE_H
 
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdint.h>
+
 /* PRIVATE *******************************************************************/
 #define DEQUE_GENERATE_HEADER_PRIVATE(PFX, SNAME, FMOD, K, T) \
     DEQUE_GENERATE_HEADER(PFX, SNAME, FMOD, K, T)
diff --git a/src/foreach.h b/src/foreach.h
index 345f927..5625809 100644
--- a/src/foreach.h
+++ b/src/foreach.h
@@ -1,5 +1,5 @@
 /**
- * @file stack.h
+ * @file for_each.h
  *
  * Last Update: 22/03/2019
  *
@@ -8,6 +8,13 @@
  *
  */
 
+#ifndef CMC_FOR_EACH
+#define CMC_FOR_EACH
+
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdint.h>
+
 #define FOR_EACH(PFX, SNAME, K, T, TARGET, BODY)     \
     do                                               \
     {                                                \
@@ -34,3 +41,5 @@
             BODY;                                    \
         }                                            \
     } while (0);
+
+#endif /* CMC_FOR_EACH */
\ No newline at end of file
diff --git a/src/list.h b/src/list.h
index 253d5dd..719157c 100644
--- a/src/list.h
+++ b/src/list.h
@@ -15,6 +15,10 @@
 #ifndef CMC_LIST_H
 #define CMC_LIST_H
 
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdint.h>
+
 /* PRIVATE *******************************************************************/
 #define LIST_GENERATE_HEADER_PRIVATE(PFX, SNAME, FMOD, K, T) \
     LIST_GENERATE_HEADER(PFX, SNAME, FMOD, K, T)
diff --git a/src/queue.h b/src/queue.h
index 1ff2158..7cd46fe 100644
--- a/src/queue.h
+++ b/src/queue.h
@@ -15,6 +15,10 @@
 #ifndef CMC_QUEUE_H
 #define CMC_QUEUE_H
 
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdint.h>
+
 /* PRIVATE *******************************************************************/
 #define QUEUE_GENERATE_HEADER_PRIVATE(PFX, SNAME, FMOD, K, T) \
     QUEUE_GENERATE_HEADER(PFX, SNAME, FMOD, K, T)
diff --git a/src/stack.h b/src/stack.h
index 031bd92..6af5b4d 100644
--- a/src/stack.h
+++ b/src/stack.h
@@ -15,6 +15,10 @@
 #ifndef CMC_STACK_H
 #define CMC_STACK_H
 
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdint.h>
+
 /* PRIVATE *******************************************************************/
 #define STACK_GENERATE_HEADER_PRIVATE(PFX, SNAME, FMOD, K, T) \
     STACK_GENERATE_HEADER(PFX, SNAME, FMOD, K, T)