diff --git a/Dockerfile b/Dockerfile
index cc58452..ebaafde 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -24,8 +24,8 @@ RUN git clone https://github.com/apache/xerces-c.git /tmp/xerces \
     -Dtranscoder=iconv \
     -DCMAKE_CXX_FLAGS=-fPIC \
     -DCMAKE_C_FLAGS=-fPIC \
-    && cmake --build /tmp/geant4/build -j$(nproc) --target install \
-    && rm -rf /tmp/geant4 \
+    && cmake --build /tmp/xerces/build -j$(nproc) --target install \
+    && rm -rf /tmp/xerces \
 
 RUN git clone https://github.com/Geant4/geant4.git /tmp/geant4 --branch=${GEANT4_VERSION} --depth=1 \
     && cmake -G Ninja -B /tmp/geant4/build -S /tmp/geant4 \