diff --git a/Makefile b/Makefile
index 03b545b..c18bbcf 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@ include rules.mk
 .PHONY: force all clean test-compile test coverage manpages test-install clean-install
 .DEFAULT_GOAL = all
 
-CXXFLAGS += -g -std=c++2a -Isrc -Wall -Wextra -Wpedantic
+CXXFLAGS += -g -std=c++2a -Wall -Wextra -Wpedantic
 
 all: $(call Executable_file,jurand)
 
diff --git a/compile_flags.txt b/compile_flags.txt
index a49f21a..155833a 100644
--- a/compile_flags.txt
+++ b/compile_flags.txt
@@ -1,5 +1,4 @@
 -std=c++2a
--Isrc
 -Wall
 -Wextra
 -Wpedantic
diff --git a/src/jurand.cpp b/src/jurand.cpp
index b1e986f..787f101 100644
--- a/src/jurand.cpp
+++ b/src/jurand.cpp
@@ -3,7 +3,7 @@
 #include <utility>
 #include <atomic>
 
-#include <java_symbols.hpp>
+#include "java_symbols.hpp"
 
 using namespace java_symbols;
 
diff --git a/src/jurand_test.cpp b/src/jurand_test.cpp
index f6c9ce7..2c5ca77 100644
--- a/src/jurand_test.cpp
+++ b/src/jurand_test.cpp
@@ -1,7 +1,7 @@
 #include <iostream>
 #include <sstream>
 
-#include <java_symbols.hpp>
+#include "java_symbols.hpp"
 
 using namespace java_symbols;