diff --git a/qgis.spec b/qgis.spec
index 1538a09..76657ed 100644
--- a/qgis.spec
+++ b/qgis.spec
@@ -174,7 +174,8 @@ find . \( -name "*.cpp" -o -name "*.h" \) -type f -perm /111 -execdir chmod -x {
 install -pm0644 %{SOURCE4} .
 
 # Delete bundled libs
-rm -rf src/core/gps/qextserialport/
+# Using external QEXTSERIALPORT causes segfaults
+# rm -rf src/core/gps/qextserialport/
 
 gzip ChangeLog
 
@@ -192,8 +193,9 @@ gzip ChangeLog
       -D WITH_CUSTOM_WIDGETS:BOOL=TRUE \
       -D BINDINGS_GLOBAL_INSTALL:BOOL=TRUE \
       -D ENABLE_TESTS:BOOL=FALSE \
-      -D WITH_INTERNAL_QEXTSERIALPORT:BOOL=FALSE \
-      -D QEXTSERIALPORT_INCLUDE_DIR:STRING=%{_includedir}/QtExtSerialPort \
+      # Using external QEXTSERIALPORT causes segfaults
+      # -D WITH_INTERNAL_QEXTSERIALPORT:BOOL=FALSE \
+      # -D QEXTSERIALPORT_INCLUDE_DIR:STRING=%{_includedir}/QtExtSerialPort \
       -D WITH_QSPATIALITE:BOOL=TRUE \
       -D WITH_SERVER:BOOL=TRUE \
       .