diff --git a/CHANGELOG.md b/CHANGELOG.md
index bfdf611c..aab4c45b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,9 @@
 # Changelog
 All notable changes to this project will be documented in this file.
 
+## Unreleased - ???
+- Support config.mk for more easily configuring the Makefile.
+
 ## 1.25.0 - 2022-10-10
 - Windows FFI fixes.
 - Fix PEG `if-not` combinator with captures in the condition
diff --git a/Makefile b/Makefile
index 8079a98b..02bd3c22 100644
--- a/Makefile
+++ b/Makefile
@@ -24,6 +24,7 @@
 sinclude config.mk
 PREFIX?=/usr/local
 
+JANETCONF_HEADER?=src/conf/janetconf.h
 INCLUDEDIR?=$(PREFIX)/include
 BINDIR?=$(PREFIX)/bin
 LIBDIR?=$(PREFIX)/lib
@@ -83,7 +84,7 @@ all: $(JANET_TARGET) $(JANET_LIBRARY) $(JANET_STATIC_LIBRARY) build/janet.h
 ##### Name Files #####
 ######################
 
-JANET_HEADERS=src/include/janet.h src/conf/janetconf.h
+JANET_HEADERS=src/include/janet.h $(JANETCONF_HEADER)
 
 JANET_LOCAL_HEADERS=src/core/features.h \
 					src/core/util.h \
@@ -176,16 +177,16 @@ endif
 build/c/shell.c: src/mainclient/shell.c
 	cp $< $@
 
-build/janet.h: $(JANET_TARGET) src/include/janet.h src/conf/janetconf.h
-	./$(JANET_TARGET) tools/patch-header.janet src/include/janet.h src/conf/janetconf.h $@
+build/janet.h: $(JANET_TARGET) src/include/janet.h $(JANETCONF_HEADER)
+	./$(JANET_TARGET) tools/patch-header.janet src/include/janet.h $(JANETCONF_HEADER) $@
 
-build/janetconf.h: src/conf/janetconf.h
+build/janetconf.h: $(JANETCONF_HEADER)
 	cp $< $@
 
-build/janet.o: build/c/janet.c src/conf/janetconf.h src/include/janet.h
+build/janet.o: build/c/janet.c $(JANETCONF_HEADER) src/include/janet.h
 	$(HOSTCC) $(BUILD_CFLAGS) -c $< -o $@
 
-build/shell.o: build/c/shell.c src/conf/janetconf.h src/include/janet.h
+build/shell.o: build/c/shell.c $(JANETCONF_HEADER) src/include/janet.h
 	$(HOSTCC) $(BUILD_CFLAGS) -c $< -o $@
 
 $(JANET_TARGET): build/janet.o build/shell.o
diff --git a/meson.build b/meson.build
index 1567f3d9..9a7f9b2b 100644
--- a/meson.build
+++ b/meson.build
@@ -20,7 +20,7 @@
 
 project('janet', 'c',
   default_options : ['c_std=c99', 'build.c_std=c99', 'b_lundef=false', 'default_library=both'],
-  version : '1.25.0')
+  version : '1.25.1')
 
 # Global settings
 janet_path = join_paths(get_option('prefix'), get_option('libdir'), 'janet')
diff --git a/src/conf/janetconf.h b/src/conf/janetconf.h
index f1c57962..78afab4b 100644
--- a/src/conf/janetconf.h
+++ b/src/conf/janetconf.h
@@ -5,9 +5,9 @@
 
 #define JANET_VERSION_MAJOR 1
 #define JANET_VERSION_MINOR 25
-#define JANET_VERSION_PATCH 0
-#define JANET_VERSION_EXTRA ""
-#define JANET_VERSION "1.25.0"
+#define JANET_VERSION_PATCH 1
+#define JANET_VERSION_EXTRA "-dev"
+#define JANET_VERSION "1.25.1-dev"
 
 /* #define JANET_BUILD "local" */