diff --git a/sit b/sit
index 2ecdda2..58b32af 100755
--- a/sit
+++ b/sit
@@ -17,20 +17,20 @@ if [[ -e $SIT_CONFIG_FILE ]] ; then
 fi
 source "$SIT_PATH/functions.sh"
 
-if [ -z $PLATFORM ]; then
 # identify platform manually if no environment variable was set
-case $HOSTNAME in
-	cl3fr1|cl3fr2|imager)
-		PLATFORM="laki"
-		;;
-	eslogin*)
-		PLATFORM="hermit1"
-		;;
-	*)
-		sit_info "Unknown host '$HOSTNAME' using default platform '${DEFAULT_PLATFORM}' configuration"
-		PLATFORM="${DEFAULT_PLATFORM}"
-		;;
-esac
+if [ -z $PLATFORM ]; then
+    case $HOSTNAME in
+        cl3fr1|cl3fr2|imager)
+            PLATFORM="laki"
+            ;;
+        eslogin*)
+            PLATFORM="hermit1"
+            ;;
+        *)
+            sit_info "Unknown host '$HOSTNAME' using default platform '${DEFAULT_PLATFORM}' configuration"
+            PLATFORM="${DEFAULT_PLATFORM}"
+            ;;
+    esac
 fi
 
 sit_info "Platform: $PLATFORM"
@@ -56,48 +56,48 @@ fi
 
 
 case $PLATFORM in
-	hermit)
-		if [ "$COMPILER" == "system" ] ; then
-			echo "Using system default compiler"
-			COMPILER="" # prevent any compiler specs in the prefix
-		else
-			module swap $(module list -l 2>&1 | awk '/^PrgEnv-/{print $1}') PrgEnv-${COMPILER}
-			if [ ! -z "$COMPILER_VERSION" ] ; then
-				if [ "${COMPILER}" == "gnu" ] ; then
-					module swap gcc gcc/$COMPILER_VERSION
-				else
-					module swap $COMPILER $COMPILER/$COMPILER_VERSION
-				fi
-			fi
-		fi
-		;;
-	laki|*)
-		if [ "$COMPILER" == "system" ] ; then
-			echo "Using system default compiler"
-			COMPILER="" # prevent any compiler specs in the prefix
-		else 
-			if [ -z "$COMPILER_VERSION" ] ; then
-				COMPILER_MODULE=compiler/${COMPILER}
-			else
-				COMPILER_MODULE=compiler/${COMPILER}/${COMPILER_VERSION}
-			fi
-			echo "Loading compiler module ${COMPILER_MODULE}"
-			module load ${COMPILER_MODULE}
-		fi
-		;;
+    hermit)
+        if [ "$COMPILER" == "system" ] ; then
+            echo "Using system default compiler"
+            COMPILER="" # prevent any compiler specs in the prefix
+        else
+            module swap $(module list -l 2>&1 | awk '/^PrgEnv-/{print $1}') PrgEnv-${COMPILER}
+            if [ ! -z "$COMPILER_VERSION" ] ; then
+                if [ "${COMPILER}" == "gnu" ] ; then
+                    module swap gcc gcc/$COMPILER_VERSION
+                else
+                    module swap $COMPILER $COMPILER/$COMPILER_VERSION
+                fi
+            fi
+        fi
+        ;;
+    laki|*)
+        if [ "$COMPILER" == "system" ] ; then
+            echo "Using system default compiler"
+            COMPILER="" # prevent any compiler specs in the prefix
+        else 
+            if [ -z "$COMPILER_VERSION" ] ; then
+                COMPILER_MODULE=compiler/${COMPILER}
+            else
+                COMPILER_MODULE=compiler/${COMPILER}/${COMPILER_VERSION}
+            fi
+            echo "Loading compiler module ${COMPILER_MODULE}"
+            module load ${COMPILER_MODULE}
+        fi
+        ;;
 esac
 
 if [ ! -z "${COMPILER}" ] ; then
-	# reevaluate compiler version
-	COMPILER_VERSION=$(eval "$COMPILER_VERSION_CMD")
+    # reevaluate compiler version
+    COMPILER_VERSION=$(eval "$COMPILER_VERSION_CMD")
 fi
 # make the compiler variables CC, CXX, FC and F77 available
 if [ ! -z "$COMPILER_OPTS" ] ; then  
-	echo "Compiler env: ${COMPILER_OPTS}"
+    echo "Compiler env: ${COMPILER_OPTS}"
     export ${COMPILER_OPTS}
 fi
 if [ ! -z $COMPILER ] ; then
-	echo "Using compiler: $COMPILER version: $COMPILER_VERSION"
+    echo "Using compiler: $COMPILER version: $COMPILER_VERSION"
 fi
 
 if [ ! -z "$MPI" ] ; then