diff --git a/builder/dockerfile.oracle_9.build b/builder/dockerfile.oracle_9.build
index aaa9184..674e2f0 100644
--- a/builder/dockerfile.oracle_9.build
+++ b/builder/dockerfile.oracle_9.build
@@ -43,6 +43,7 @@ RUN dnf install -y --nogpgcheck https://mirrors.rpmfusion.org/free/el/rpmfusion-
 # Install from new repos
 RUN dnf install -y \
   giflib-devel \
+  ffmpeg-devel \
   lbzip2 \
   libXfont2-devel \
   libxkbfile-devel \
diff --git a/common/rfb/CMakeLists.txt b/common/rfb/CMakeLists.txt
index a99e548..1094ece 100644
--- a/common/rfb/CMakeLists.txt
+++ b/common/rfb/CMakeLists.txt
@@ -141,6 +141,7 @@ target_include_directories(rfb PRIVATE
         ${PNG_INCLUDE_DIR}
         ${CMAKE_SOURCE_DIR}/unix/kasmvncpasswd
         ${CMAKE_SOURCE_DIR}/third_party/tinyxml2
+        ${FFMPEG_INCLUDE_DIRS}
 )
 
 target_link_libraries(rfb PRIVATE ${RFB_LIBRARIES} tinyxml2_objs  ${FFMPEG_LIBRARIES})
diff --git a/common/rfb/benchmark.cxx b/common/rfb/benchmark.cxx
index c5d6f20..907a740 100644
--- a/common/rfb/benchmark.cxx
+++ b/common/rfb/benchmark.cxx
@@ -22,6 +22,7 @@
 #include <rfb/LogWriter.h>
 #include <numeric>
 #include <tinyxml2.h>
+#include <algorithm>
 #include <sstream>
 
 void benchmark(const std::string &path) {