diff --git a/install-racket.sh b/install-racket.sh
index 2d5054f..47bc915 100755
--- a/install-racket.sh
+++ b/install-racket.sh
@@ -9,6 +9,12 @@ else
     MIN=""
 fi
 
+if [[ "$RACKET_NATIPKG" = "1" ]]; then
+    RACKET_NATIPKG="-natipkg"
+else
+    RACKET_NATIPKG=""
+fi
+
 DL_BASE="https://www.cs.utah.edu/plt/installers"
 
 if [[ "$RACKET_VERSION" = "HEAD" ]]; then
@@ -21,9 +27,9 @@ if [[ "$RACKET_VERSION" = "HEAD" ]]; then
 elif [[ "$RACKET_VERSION" = "HEADCS" ]]; then
     UTAH_BASE="https://www.cs.utah.edu/plt/snapshots/current/installers"
     if [[ "$RACKET_MINIMAL" = "1" ]]; then
-	URL="${UTAH_BASE}/min-racket-current-x86_64-linux-cs-xenial.sh"
+        URL="${UTAH_BASE}/min-racket-current-x86_64-linux-cs-xenial.sh"
     else
-	URL="${UTAH_BASE}/racket-current-x86_64-linux-cs-xenial.sh"
+        URL="${UTAH_BASE}/racket-current-x86_64-linux-cs-xenial.sh"
     fi
 elif [[ "$RACKET_VERSION" = 5.3* ]]; then
     if [[ "$RACKET_MINIMAL" = "1" ]]; then
@@ -32,15 +38,15 @@ elif [[ "$RACKET_VERSION" = 5.3* ]]; then
         URL="${DL_BASE}/${RACKET_VERSION}/racket/racket-${MIN}${RACKET_VERSION}-bin-x86_64-linux-debian-squeeze.sh"
     fi
 elif [[ "$RACKET_VERSION" = "RELEASE" ]]; then
-    URL="https://pre-release.racket-lang.org/installers/racket-${MIN}current-x86_64-linux.sh"
+    URL="https://pre-release.racket-lang.org/installers/racket-${MIN}current-x86_64-linux${RACKET_NATIPKG}.sh"
 elif [[ "$RACKET_VERSION" = 5.9* ]]; then
     URL="${DL_BASE}/${RACKET_VERSION}/racket-${MIN}${RACKET_VERSION}-x86_64-linux-ubuntu-quantal.sh"
 elif [[ "$RACKET_VERSION" = 6.[0-4] ]] || [[ "$RACKET_VERSION" = 6.[0-4].[0-9] ]]; then
     URL="${DL_BASE}/${RACKET_VERSION}/racket-${MIN}${RACKET_VERSION}-x86_64-linux-ubuntu-precise.sh"
 elif [[ "$RACKET_VERSION" = 6.* ]]; then
-    URL="${DL_BASE}/${RACKET_VERSION}/racket-${MIN}${RACKET_VERSION}-x86_64-linux.sh"
+    URL="${DL_BASE}/${RACKET_VERSION}/racket-${MIN}${RACKET_VERSION}-x86_64-linux${RACKET_NATIPKG}.sh"
 elif [[ "$RACKET_VERSION" = 7.* ]]; then
-    URL="${DL_BASE}/${RACKET_VERSION}/racket-${MIN}${RACKET_VERSION}-x86_64-linux.sh"
+    URL="${DL_BASE}/${RACKET_VERSION}/racket-${MIN}${RACKET_VERSION}-x86_64-linux${RACKET_NATIPKG}.sh"
 else
     echo "ERROR: Unsupported version ${RACKET_VERSION}"
     exit 1