diff --git a/poppler/SplashOutputDev.cc b/poppler/SplashOutputDev.cc
index 440ee30..214302a 100644
--- a/poppler/SplashOutputDev.cc
+++ b/poppler/SplashOutputDev.cc
@@ -74,6 +74,7 @@
 #include "splash/SplashFont.h"
 #include "splash/SplashFontFile.h"
 #include "splash/SplashFontFileID.h"
+#include "splash/SplashMath.h"
 #include "splash/Splash.h"
 #include "SplashOutputDev.h"
 #include <algorithm>
diff --git a/splash/SplashClip.cc b/splash/SplashClip.cc
index 8a07f24..a58fd29 100644
--- a/splash/SplashClip.cc
+++ b/splash/SplashClip.cc
@@ -25,6 +25,7 @@
 #include <string.h>
 #include "goo/gmem.h"
 #include "SplashErrorCodes.h"
+#include "SplashMath.h"
 #include "SplashPath.h"
 #include "SplashXPath.h"
 #include "SplashXPathScanner.h"
diff --git a/splash/SplashClip.h b/splash/SplashClip.h
index ddc4897..a6ab187 100644
--- a/splash/SplashClip.h
+++ b/splash/SplashClip.h
@@ -23,7 +23,6 @@
 #define SPLASHCLIP_H
 
 #include "SplashTypes.h"
-#include "SplashMath.h"
 #include "SplashXPathScanner.h"
 
 class SplashPath;