diff --git a/lib/pam_getenv.c b/lib/pam_getenv.c
index 84e5f27..58ad283 100644
--- a/lib/pam_getenv.c
+++ b/lib/pam_getenv.c
@@ -31,7 +31,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- * $P4: //depot/projects/openpam/lib/pam_getenv.c#11 $
+ * $P4: //depot/projects/openpam/lib/pam_getenv.c#12 $
  */
 
 #include <stdlib.h>
@@ -62,7 +62,12 @@ pam_getenv(pam_handle_t *pamh,
 		RETURNS(NULL);
 	if ((i = openpam_findenv(pamh, name, strlen(name))) == -1)
 		RETURNS(NULL);
-	str = strdup(pamh->env[i]);
+	for (str = pamh->env[i]; *str != '\0'; ++str) {
+		if (*str == '=') {
+			++str;
+			break;
+		}
+	}
 	RETURNS(str);
 }