diff --git a/src/ccutil/clst.h b/src/ccutil/clst.h
index 0db089cf..1304b149 100644
--- a/src/ccutil/clst.h
+++ b/src/ccutil/clst.h
@@ -19,10 +19,12 @@
 #ifndef CLST_H
 #define CLST_H
 
-#include <cstdio>
-#include "tesseract/serialis.h"
 #include "lsterr.h"
 
+#include <tesseract/serialis.h>
+
+#include <cstdio>
+
 class CLIST_ITERATOR;
 
 /**********************************************************************
diff --git a/src/ccutil/params.h b/src/ccutil/params.h
index b097451e..73b42255 100644
--- a/src/ccutil/params.h
+++ b/src/ccutil/params.h
@@ -19,10 +19,10 @@
 #ifndef PARAMS_H
 #define PARAMS_H
 
-#include <cstdio>
+#include <tesseract/genericvector.h>
+#include <tesseract/strngs.h>
 
-#include "tesseract/genericvector.h"
-#include "tesseract/strngs.h"
+#include <cstdio>
 
 namespace tesseract {
 
diff --git a/src/classify/shapeclassifier.h b/src/classify/shapeclassifier.h
index 21f9dcf8..5c061451 100644
--- a/src/classify/shapeclassifier.h
+++ b/src/classify/shapeclassifier.h
@@ -23,7 +23,7 @@
 #ifndef TESSERACT_CLASSIFY_SHAPECLASSIFIER_H_
 #define TESSERACT_CLASSIFY_SHAPECLASSIFIER_H_
 
-#include "tesseract/unichar.h"
+#include <tesseract/unichar.h>
 
 template <typename T> class GenericVector;
 struct Pix;