diff --git a/src/include/Args.h b/src/include/Args.h
index 3108de3..2161c1b 100644
--- a/src/include/Args.h
+++ b/src/include/Args.h
@@ -38,7 +38,7 @@
  * provide the standard command line interface.
  */
 
-#include <Array.h>
+#include "Array.h"
 
 /**
  * All state is stored in this structure, instead of global
diff --git a/src/include/Cron.h b/src/include/Cron.h
index e78900d..23053c6 100644
--- a/src/include/Cron.h
+++ b/src/include/Cron.h
@@ -56,7 +56,7 @@
  * by any means.
  */
 
-#include <Int.h>
+#include "Int.h"
 
 /**
  * All functions defined here operate on a structure opaque to the
diff --git a/src/include/Db.h b/src/include/Db.h
index 618a2e2..da98a39 100644
--- a/src/include/Db.h
+++ b/src/include/Db.h
@@ -38,8 +38,8 @@
 
 #include <stddef.h>
 
-#include <HashMap.h>
-#include <Array.h>
+#include "HashMap.h"
+#include "Array.h"
 
 /**
  * All functions in this API operate on a database structure that is
diff --git a/src/include/HashMap.h b/src/include/HashMap.h
index 1359400..f0ee7f3 100644
--- a/src/include/HashMap.h
+++ b/src/include/HashMap.h
@@ -46,7 +46,7 @@
 
 #include <stddef.h>
 
-#include <Array.h>
+#include "Array.h"
 
 /**
  * These functions operate on an opaque structure, which the caller
diff --git a/src/include/HeaderParser.h b/src/include/HeaderParser.h
index ffb3d0b..52d8e33 100644
--- a/src/include/HeaderParser.h
+++ b/src/include/HeaderParser.h
@@ -41,8 +41,8 @@
  * for example usage of this parser.
  */
 
-#include <Stream.h>
-#include <Array.h>
+#include "Stream.h"
+#include "Array.h"
 
 #define HEADER_EXPR_MAX 4096
 
diff --git a/src/include/Http.h b/src/include/Http.h
index d2de020..37875d8 100644
--- a/src/include/Http.h
+++ b/src/include/Http.h
@@ -42,8 +42,8 @@
 
 #include <stdio.h>
 
-#include <HashMap.h>
-#include <Stream.h>
+#include "HashMap.h"
+#include "Stream.h"
 
 #define HTTP_FLAG_NONE 0
 #define HTTP_FLAG_TLS (1 << 0)
diff --git a/src/include/HttpClient.h b/src/include/HttpClient.h
index f757041..28fe3c2 100644
--- a/src/include/HttpClient.h
+++ b/src/include/HttpClient.h
@@ -39,8 +39,8 @@
 
 #include <stdio.h>
 
-#include <HashMap.h>
-#include <Http.h>
+#include "HashMap.h"
+#include "Http.h"
 
 /**
  * A server response is represented by a client context. It is
diff --git a/src/include/HttpRouter.h b/src/include/HttpRouter.h
index 6816178..a0950b0 100644
--- a/src/include/HttpRouter.h
+++ b/src/include/HttpRouter.h
@@ -38,7 +38,7 @@
  * handler functions.
  */
 
-#include <Array.h>
+#include "Array.h"
 
 /**
  * The router structure is opaque and thus managed entirely  by the
diff --git a/src/include/HttpServer.h b/src/include/HttpServer.h
index f8e449a..78ef2f8 100644
--- a/src/include/HttpServer.h
+++ b/src/include/HttpServer.h
@@ -46,12 +46,11 @@
  * closely resembles Java.
  */
 
-#include <Http.h>
-
 #include <stdio.h>
 
-#include <HashMap.h>
-#include <Stream.h>
+#include "Http.h"
+#include "HashMap.h"
+#include "Stream.h"
 
 /**
  * The functions on this API operate on an opaque structure.
diff --git a/src/include/Int64.h b/src/include/Int64.h
index 08083c1..e380ab4 100644
--- a/src/include/Int64.h
+++ b/src/include/Int64.h
@@ -64,8 +64,8 @@
  * @ignore-typedefs
  */
 
-#include <Int.h>
-#include <UInt64.h>
+#include "Int.h"
+#include "UInt64.h"
 
 #include <stddef.h>
 
diff --git a/src/include/Json.h b/src/include/Json.h
index 4185260..cc4a63d 100644
--- a/src/include/Json.h
+++ b/src/include/Json.h
@@ -68,10 +68,10 @@
  * behavior.
  */
 
-#include <HashMap.h>
-#include <Array.h>
-#include <Stream.h>
-#include <Int64.h>
+#include "HashMap.h"
+#include "Array.h"
+#include "Stream.h"
+#include "Int64.h"
 
 #include <stdio.h>
 #include <stddef.h>
diff --git a/src/include/Log.h b/src/include/Log.h
index d0300ca..1567b6e 100644
--- a/src/include/Log.h
+++ b/src/include/Log.h
@@ -42,7 +42,7 @@
 #include <stddef.h>
 #include <syslog.h>
 
-#include <Stream.h>
+#include "Stream.h"
 
 #define LOG_FLAG_COLOR  (1 << 0)
 #define LOG_FLAG_SYSLOG (1 << 1)
diff --git a/src/include/Runtime.h b/src/include/Runtime.h
index 6e13b6a..f23a1ba 100644
--- a/src/include/Runtime.h
+++ b/src/include/Runtime.h
@@ -37,8 +37,6 @@
  * the runtime stub needs to know their definitions.
  */
 
-#include <Array.h>
-
 /**
  * Write a memory report to a file in the current directory, using
  * the provided program arguments, including the program name that
diff --git a/src/include/Str.h b/src/include/Str.h
index 714b8d8..cae9062 100644
--- a/src/include/Str.h
+++ b/src/include/Str.h
@@ -39,7 +39,7 @@
  * is a standard library header.
  */
 
-#include <Int.h>
+#include "Int.h"
 
 #include <stddef.h>
 
diff --git a/src/include/Stream.h b/src/include/Stream.h
index 3ddacc6..7c6a1a5 100644
--- a/src/include/Stream.h
+++ b/src/include/Stream.h
@@ -36,7 +36,7 @@
  * C library and offering some more convenience features.
  */
 
-#include <Io.h>
+#include "Io.h"
 
 #include <stdarg.h>
 
diff --git a/src/include/Tls.h b/src/include/Tls.h
index 4407ed0..8314f7d 100644
--- a/src/include/Tls.h
+++ b/src/include/Tls.h
@@ -46,7 +46,7 @@
  * .El
  */
 
-#include <Stream.h>
+#include "Stream.h"
 
 #define TLS_LIBRESSL 2
 #define TLS_OPENSSL 3
diff --git a/src/include/UInt64.h b/src/include/UInt64.h
index 51cc30c..c16fc22 100644
--- a/src/include/UInt64.h
+++ b/src/include/UInt64.h
@@ -64,7 +64,7 @@
  * @ignore-typedefs
  */
 
-#include <Int.h>
+#include "Int.h"
 
 #include <stddef.h>
 
diff --git a/src/include/Util.h b/src/include/Util.h
index d6c3830..e7bef57 100644
--- a/src/include/Util.h
+++ b/src/include/Util.h
@@ -42,8 +42,8 @@
 #include <stddef.h>
 #include <sys/types.h>
 
-#include <Stream.h>
-#include <UInt64.h>
+#include "Stream.h"
+#include "UInt64.h"
 
 /**
  * Get the current timestamp in milliseconds since the Unix epoch. This