diff --git a/Makefile b/Makefile
index ef4b9cdcb5ea59..8fdf0072600734 100644
--- a/Makefile
+++ b/Makefile
@@ -13,10 +13,6 @@ CLINT_ERRORS_FILE_PATH := /reports/clint/errors.json
 BUILD_TYPE ?= $(shell (type ninja > /dev/null 2>&1 && echo "Ninja") || \
     echo "Unix Makefiles")
 
-ifneq (,$(PREFIX))
-  CMAKE_FLAGS += -DCMAKE_INSTALL_PREFIX:PATH="$(PREFIX)"
-endif
-
 ifeq (,$(BUILD_TOOL))
   ifeq (Ninja,$(BUILD_TYPE))
     ifneq ($(shell cmake --help 2>/dev/null | grep Ninja),)
diff --git a/contrib/local.mk.example b/contrib/local.mk.example
index 6959107ea2c8f3..a0b2d034e1622a 100644
--- a/contrib/local.mk.example
+++ b/contrib/local.mk.example
@@ -2,7 +2,7 @@
 # Individual entries must be uncommented to take effect.
 
 # By default, the installation prefix is '/usr/local'.
-# PREFIX := /usr/local/nvim-latest
+# CMAKE_EXTRA_FLAGS += -DCMAKE_INSTALL_PREFIX=/usr/local/nvim-latest
 
 # These CFLAGS can be used in addition to those specified in CMakeLists.txt:
 # CMAKE_EXTRA_FLAGS="-DCMAKE_C_FLAGS=-ftrapv -Wlogical-op"