diff --git a/configure.ac b/configure.ac
index 62b9365..d366fa2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -49,15 +49,14 @@ if test "${enable_conio}" != "no"; then
 fi
 
 if test "${enable_slang}" != "no"; then
-  AC_CHECK_HEADERS(slang.h,
+  AC_CHECK_HEADERS(slang.h slang/slang.h,
+   ac_cv_my_have_slang="no"
    [AC_CHECK_LIB(slang, SLkp_init,
      [ac_cv_my_have_slang="yes"
       AC_DEFINE(USE_SLANG, 1, Define to activate the slang backend driver)
       CPPFLAGS="${CPPFLAGS} -DOPTIMISE_SLANG_PALETTE=1"
       CACA_LIBS="${CACA_LIBS} -lslang"
-      CACA_DRIVERS="${CACA_DRIVERS} slang"],
-     [ac_cv_my_have_slang="no"])],
-   [ac_cv_my_have_slang="no"])
+      CACA_DRIVERS="${CACA_DRIVERS} slang"])])
   if test "${ac_cv_my_have_slang}" = "no" -a "${enable_slang}" = "yes"; then
     AC_MSG_ERROR([cannot find slang development files])
   fi
diff --git a/src/caca.c b/src/caca.c
index 94f6666..77ea9be 100644
--- a/src/caca.c
+++ b/src/caca.c
@@ -32,7 +32,11 @@
 #include "config.h"
 
 #if defined(USE_SLANG)
-#   include <slang.h>
+#   if defined(HAVE_SLANG_SLANG_H)
+#       include <slang/slang.h>
+#   else
+#       include <slang.h>
+#   endif
 #endif
 #if defined(USE_NCURSES)
 #   include <curses.h>
diff --git a/src/graphics.c b/src/graphics.c
index e2b798a..6f1f47d 100644
--- a/src/graphics.c
+++ b/src/graphics.c
@@ -30,7 +30,11 @@
 #include "config.h"
 
 #if defined(USE_SLANG)
-#   include <slang.h>
+#   if defined(HAVE_SLANG_SLANG_H)
+#       include <slang/slang.h>
+#   else
+#       include <slang.h>
+#   endif
 #endif
 #if defined(USE_NCURSES)
 #   include <curses.h>
diff --git a/src/io.c b/src/io.c
index c1076c5..e189c8a 100644
--- a/src/io.c
+++ b/src/io.c
@@ -30,7 +30,11 @@
 #include "config.h"
 
 #if defined(USE_SLANG)
-#   include <slang.h>
+#   if defined(HAVE_SLANG_SLANG_H)
+#       include <slang/slang.h>
+#   else
+#       include <slang.h>
+#   endif
 #endif
 #if defined(USE_NCURSES)
 #   include <curses.h>