diff --git a/install-scripts/install-safe-chain.sh b/install-scripts/install-safe-chain.sh
index 6f0dd26..63e622e 100755
--- a/install-scripts/install-safe-chain.sh
+++ b/install-scripts/install-safe-chain.sh
@@ -161,7 +161,15 @@ remove_volta_installation() {
 
 # Check and uninstall nvm-managed package if present across all Node versions
 remove_nvm_installation() {
-    # Check if nvm is available as a command
+    # nvm is a shell function, not a binary, so we need to source it first
+    if [ -s "$HOME/.nvm/nvm.sh" ]; then
+        # Source nvm to make it available in this script
+        . "$HOME/.nvm/nvm.sh" >/dev/null 2>&1
+    elif [ -s "$NVM_DIR/nvm.sh" ]; then
+        . "$NVM_DIR/nvm.sh" >/dev/null 2>&1
+    fi
+
+    # Check if nvm is now available
     if ! command_exists nvm; then
         return
     fi
diff --git a/install-scripts/uninstall-safe-chain.sh b/install-scripts/uninstall-safe-chain.sh
index 8d1fbdf..15c4f96 100755
--- a/install-scripts/uninstall-safe-chain.sh
+++ b/install-scripts/uninstall-safe-chain.sh
@@ -77,7 +77,15 @@ remove_volta_installation() {
 
 # Check and uninstall nvm-managed package if present across all Node versions
 remove_nvm_installation() {
-    # Check if nvm is available as a command
+    # nvm is a shell function, not a binary, so we need to source it first
+    if [ -s "$HOME/.nvm/nvm.sh" ]; then
+        # Source nvm to make it available in this script
+        . "$HOME/.nvm/nvm.sh" >/dev/null 2>&1
+    elif [ -s "$NVM_DIR/nvm.sh" ]; then
+        . "$NVM_DIR/nvm.sh" >/dev/null 2>&1
+    fi
+
+    # Check if nvm is now available
     if ! command_exists nvm; then
         return
     fi