diff --git a/r5dev/mathlib/noisedata.h b/r5dev/mathlib/noisedata.h
index f8aaeed8..89d0f159 100644
--- a/r5dev/mathlib/noisedata.h
+++ b/r5dev/mathlib/noisedata.h
@@ -8,6 +8,8 @@
 //
 //    **** DO NOT EDIT THIS FILE. GENERATED BY DATAGEN.PL ****
 //
+#ifndef NOISEDATA_H
+#define NOISEDATA_H
 
 static int perm_a[] = {
     66,147,106,213,89,115,239,25,171,175,9,114,141,226,118,128,41,208,4,56,
@@ -306,3 +308,5 @@ static float s_randomGradients[] = {
      0.507019f,0.148758f, 0.751545f, 0.974243f,-0.153430f, -0.318230f,
      0.986816f,-0.439372f, 0.776405f, 0.716919f
 };
+
+#endif // NOISEDATA_H
\ No newline at end of file
diff --git a/r5dev/mathlib/parallel_for.h b/r5dev/mathlib/parallel_for.h
index ac766efd..6bc9d74d 100644
--- a/r5dev/mathlib/parallel_for.h
+++ b/r5dev/mathlib/parallel_for.h
@@ -2,6 +2,7 @@
 #include <thread>
 #include <functional>
 #include <vector>
+#pragma once
 
 /// @param[in] nb_elements : size of your for loop
 /// @param[in] functor(start, end) :
diff --git a/r5dev/naveditor/include/DroidSans.h b/r5dev/naveditor/include/DroidSans.h
index f448817e..bb1f2599 100644
--- a/r5dev/naveditor/include/DroidSans.h
+++ b/r5dev/naveditor/include/DroidSans.h
@@ -1,3 +1,6 @@
+#ifndef DROIDSANS_H
+#define DROIDSANS_H
+
 // File: 'DroidSans.ttf' (108796 bytes)
 // Exported using binary_to_compressed_c.cpp
 static const unsigned int droidsans_size = 108796;
@@ -2271,3 +2274,5 @@ static const unsigned int droidsans_data[108796 / 4] =
     0x3032696e, 0x75073730, 0x3032696e, 0x75073830, 0x3032696e, 0x75073930, 0x3032696e, 0x75074130, 0x3032696e, 0x75074230, 0x4546696e, 0x75074646,
     0x4646696e, 0x75074346, 0x4646696e, 0x00004446, 0x02000000, 0x02000500, 0x0300ffff,
 };
+
+#endif // DROIDSANS_H
\ No newline at end of file