diff --git a/CHANGELOG.md b/CHANGELOG.md
index fc6f1e1..a0c270c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [1.0.0-pre.11] - 2026-03-15
+
+### Fixed
+- `gmake.mk`: `PREFIX` now defaults to `/usr` on Linux instead of `/usr/local`
+
 ## [1.0.0-pre.10] - 2026-03-14
 
 ### Fixed
@@ -207,7 +212,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Dependency management and versioning not yet implemented
 - API is unstable and subject to change in future releases
 
-[Unreleased]: https://github.com/anth64/stk/compare/v1.0.0-pre.10...HEAD
+[Unreleased]: https://github.com/anth64/stk/compare/v1.0.0-pre.11...HEAD
+[1.0.0-pre.11]: https://github.com/anth64/stk/compare/v1.0.0-pre.10...v1.0.0-pre.11
 [1.0.0-pre.10]: https://github.com/anth64/stk/compare/v1.0.0-pre.9...v1.0.0-pre.10
 [1.0.0-pre.9]: https://github.com/anth64/stk/compare/v1.0.0-pre.8...v1.0.0-pre.9
 [1.0.0-pre.8]: https://github.com/anth64/stk/compare/v1.0.0-pre.7...v1.0.0-pre.8
diff --git a/README.md b/README.md
index 1141243..5d71c03 100644
--- a/README.md
+++ b/README.md
@@ -46,7 +46,7 @@ build.bat debug release
 ./build.sh install
 ```
 
-Installs to `/usr/local` by default. Use `PREFIX` to customize:
+Installs to `/usr` on Linux, `/usr/local` on BSD/macOS by default. Use `PREFIX` to customize:
 ```bash
 ./build.sh PREFIX=$HOME/.local install
 ```
@@ -234,7 +234,7 @@ stk_init();
 
 ## Project Status
 
-**Current Version:** 1.0.0-pre.10
+**Current Version:** 1.0.0-pre.11
 
 ### What Works
 - Cross-platform module loading and hot-reloading
diff --git a/gmake.mk b/gmake.mk
index e33ce1f..f4df20a 100644
--- a/gmake.mk
+++ b/gmake.mk
@@ -22,7 +22,7 @@ endif
 RELEASE_LDFLAGS := -s
 CFLAGS_BASE := -Wall -Wpedantic -I$(INC_DIR) -std=c89 $(CFLAGS_PLAT) 
 
-PREFIX ?= /usr/local
+PREFIX ?= /usr
 LIBDIR ?= $(PREFIX)/lib
 INCDIR ?= $(PREFIX)/include