diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 5df5f80e..36551cb2 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -17,7 +17,7 @@ jobs:
 
     - uses: actions/setup-go@v6
       with:
-        go-version: "1.26"
+        go-version: "1.25"
 
     - run: go generate ./...
 
@@ -33,7 +33,7 @@ jobs:
 
     - uses: actions/setup-go@v6
       with:
-        go-version: "1.26"
+        go-version: "1.25"
 
     - run: make lint-go-mod
 
@@ -45,7 +45,7 @@ jobs:
 
     - uses: actions/setup-go@v6
       with:
-        go-version: "1.26"
+        go-version: "1.25"
 
     - run: make lint-conf
 
@@ -57,7 +57,7 @@ jobs:
 
     - uses: actions/setup-go@v6
       with:
-        go-version: "1.26"
+        go-version: "1.25"
 
     - run: make lint-go2api
 
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 646dcff6..9d981019 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -41,6 +41,6 @@ jobs:
 
     - uses: actions/setup-go@v6
       with:
-        go-version: "1.26"
+        go-version: "1.25"
 
     - run: make test-e2e-nodocker
diff --git a/Makefile b/Makefile
index b87dac4b..6dcba19c 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-BASE_IMAGE = golang:1.26-alpine3.22
+BASE_IMAGE = golang:1.25-alpine3.22
 GOLANGCI_LINT_IMAGE = golangci/golangci-lint:v2.10.1
 NODE_IMAGE = node:20-alpine3.22
 
diff --git a/docs/6-misc/1-compile.md b/docs/6-misc/1-compile.md
index 099ae722..f7675f95 100644
--- a/docs/6-misc/1-compile.md
+++ b/docs/6-misc/1-compile.md
@@ -2,7 +2,7 @@
 
 ## Standard procedure
 
-1. Install git and Go ≥ 1.26.
+1. Install git and Go ≥ 1.25.
 
 2. Clone the repository, enter into the folder and start the building process:
 
@@ -21,7 +21,7 @@ If you need to use a custom or external libcamera to interact with some Raspberr
 
 1. Download [mediamtx-rpicamera source code](https://github.com/bluenviron/mediamtx-rpicamera) and compile it against the external libcamera. Instructions are in the repository.
 
-2. Install git and Go ≥ 1.26.
+2. Install git and Go ≥ 1.25.
 
 3. Clone the _MediaMTX_ repository:
 
@@ -49,7 +49,7 @@ If you need to use a custom or external libcamera to interact with some Raspberr
 
 Cross compilation allows to build an executable for a target machine from another machine with different operating system or architecture. This is useful in case the target machine doesn't have enough resources for compilation or if you don't want to install the compilation dependencies on it.
 
-1. On the machine you want to use to compile, install git and Go ≥ 1.26.
+1. On the machine you want to use to compile, install git and Go ≥ 1.25.
 
 2. Clone the repository, enter into the folder and start the building process:
 
diff --git a/go.mod b/go.mod
index 98b11d1f..ffbdb2c6 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/bluenviron/mediamtx
 
-go 1.26.0
+go 1.25.0
 
 require (
 	code.cloudfoundry.org/bytefmt v0.64.0
diff --git a/internal/conf/conf.go b/internal/conf/conf.go
index bfef7f32..37c4490f 100644
--- a/internal/conf/conf.go
+++ b/internal/conf/conf.go
@@ -52,7 +52,8 @@ func setAllNilSlicesToEmptyRecursive(rv reflect.Value) {
 	}
 
 	if rv.Kind() == reflect.Struct {
-		for _, field := range rv.Fields() {
+		for i := range rv.NumField() {
+			field := rv.Field(i)
 			switch field.Kind() {
 			case reflect.Slice:
 				if field.IsNil() {