diff --git a/Dockerfile b/Dockerfile
index 714eba7..2ebd082 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -410,7 +410,7 @@ RUN \
 	--enable-libkvazaar \
 	--enable-libmp3lame \
 	--enable-libopencore-amrnb \
-        --enable-libopencore-amrwb \
+	--enable-libopencore-amrwb \
 	--enable-libopenjpeg \
 	--enable-libopus \
 	--enable-libtheora \
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index 86b20ea..8590ed2 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -412,7 +412,7 @@ RUN \
 	--enable-libkvazaar \
 	--enable-libmp3lame \
 	--enable-libopencore-amrnb \
-        --enable-libopencore-amrwb \
+	--enable-libopencore-amrwb \
 	--enable-libopenjpeg \
 	--enable-libopus \
 	--enable-libtheora \
diff --git a/Dockerfile.armhf b/Dockerfile.armhf
index 4188dc5..5cf8128 100644
--- a/Dockerfile.armhf
+++ b/Dockerfile.armhf
@@ -421,7 +421,7 @@ RUN \
 	--enable-libkvazaar \
 	--enable-libmp3lame \
 	--enable-libopencore-amrnb \
-        --enable-libopencore-amrwb \
+	--enable-libopencore-amrwb \
 	--enable-libopenjpeg \
 	--enable-libopus \
 	--enable-libtheora \