diff --git a/Dockerfile b/Dockerfile
index 4bfd20f..3715d19 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -38,8 +38,12 @@ RUN dart pub get
 COPY lib/ ./lib/
 COPY protocol_analyzer.c ./
 
+# Debug: Check what nDPI installed
+RUN find /usr -name "*ndpi*" -type f 2>/dev/null | head -10
+RUN find /usr -name "*.h" -path "*ndpi*" 2>/dev/null | head -10
+
 # Compile the C protocol analyzer
-RUN gcc -o protocol_analyzer protocol_analyzer.c -I/usr/local/include -L/usr/local/lib -lndpi -lpcap
+RUN gcc -o protocol_analyzer protocol_analyzer.c -I/usr/local/include -I/usr/local/include/libndpi-4.8.0/libndpi -L/usr/local/lib -lndpi -lpcap
 
 # Compile the application
 RUN dart compile exe lib/main.dart -o waylume_server