diff --git a/src/openrct2/drawing/Line.cpp b/src/openrct2/drawing/Line.cpp
index a7d67c68d4..f376ca0bcf 100644
--- a/src/openrct2/drawing/Line.cpp
+++ b/src/openrct2/drawing/Line.cpp
@@ -14,6 +14,8 @@
  *****************************************************************************/
 #pragma endregion
 
+#include <cmath>
+
 #include "Drawing.h"
 
 /**
diff --git a/test/testpaint/Hook.cpp b/test/testpaint/Hook.cpp
index 6a11b988da..92490af19c 100644
--- a/test/testpaint/Hook.cpp
+++ b/test/testpaint/Hook.cpp
@@ -14,6 +14,8 @@
  *****************************************************************************/
 #pragma endregion
 
+#include <cstdio>
+#include <cstdlib>
 #include <openrct2/common.h>
 
 #ifndef NO_RCT2
diff --git a/test/testpaint/main.cpp b/test/testpaint/main.cpp
index 2450a615f2..410341035c 100644
--- a/test/testpaint/main.cpp
+++ b/test/testpaint/main.cpp
@@ -15,6 +15,7 @@
 #pragma endregion
 
 #include <algorithm>
+#include <cstdio>
 #include <cstdarg>
 #include <string>
 #include <vector>