diff --git a/external/openal/CMakeLists.txt b/external/openal/CMakeLists.txt
index 6a0450e..398f189 100644
--- a/external/openal/CMakeLists.txt
+++ b/external/openal/CMakeLists.txt
@@ -41,7 +41,6 @@ elseif (APPLE)
 else()
     target_include_directories(external_openal SYSTEM
     INTERFACE
-        /usr/local/include
         /usr/local/include/AL
     )
     target_link_static_libraries(external_openal
diff --git a/external/rnnoise/CMakeLists.txt b/external/rnnoise/CMakeLists.txt
index 31f2d3a..b77fedd 100644
--- a/external/rnnoise/CMakeLists.txt
+++ b/external/rnnoise/CMakeLists.txt
@@ -38,10 +38,6 @@ elseif (APPLE)
         IMPORTED_LOCATION_DEBUG "${rnnoise_lib_loc}/Debug/librnnoise.a"
     )
 else()
-    target_include_directories(external_rnnoise SYSTEM
-    INTERFACE
-        /usr/local/include
-    )
     find_library(DESKTOP_APP_RNNOISE_LIBRARIES librnnoise.a REQUIRED)
     set_target_properties(external_rnnoise PROPERTIES
         IMPORTED_LOCATION "${DESKTOP_APP_RNNOISE_LIBRARIES}"
diff --git a/external/vpx/CMakeLists.txt b/external/vpx/CMakeLists.txt
index 39c58b0..8840ef7 100644
--- a/external/vpx/CMakeLists.txt
+++ b/external/vpx/CMakeLists.txt
@@ -42,10 +42,6 @@ elseif (APPLE)
         IMPORTED_LOCATION ${libs_loc}/local/lib/libvpx.a
     )
 else()
-    target_include_directories(external_vpx SYSTEM
-    INTERFACE
-        /usr/local/include
-    )
     find_library(DESKTOP_APP_VPX_LIBRARIES libvpx.a REQUIRED)
     set_target_properties(external_vpx PROPERTIES
         IMPORTED_LOCATION "${DESKTOP_APP_VPX_LIBRARIES}"