diff --git a/src/endian_internal.c b/src/endian_internal.c
index ec040c7..fc7301a 100755
--- a/src/endian_internal.c
+++ b/src/endian_internal.c
@@ -22,7 +22,7 @@
 
 int32_t CheckEndian(void);
 
-int32_t CheckEndian()
+int32_t CheckEndian(void)
 {
     union {
         int32_t i;
diff --git a/src/main.c b/src/main.c
index de885a0..0aec356 100755
--- a/src/main.c
+++ b/src/main.c
@@ -13,13 +13,13 @@
  * limitations under the License.
  */
 
-#include "syscap_tool.h"
 #include <stdint.h>
 #include <unistd.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <getopt.h>
 #include <limits.h>
+#include "syscap_tool.h"
 
 extern char *optarg;
 
diff --git a/test/syscap_tool_test.c b/test/syscap_tool_test.c
index de617e6..c92be59 100755
--- a/test/syscap_tool_test.c
+++ b/test/syscap_tool_test.c
@@ -13,7 +13,6 @@
  * limitations under the License.
  */
 
-#include "syscap_tool.h"
 #include <string.h>
 #include <stdint.h>
 #include <unistd.h>
@@ -23,6 +22,7 @@
 #include <limits.h>
 #include <sys/types.h>
 #include <wait.h>
+#include "syscap_tool.h"
 
 extern char *optarg;