diff --git a/core/tremor/codebook.c b/core/tremor/codebook.c
index 96a8e6f..d055870 100644
--- a/core/tremor/codebook.c
+++ b/core/tremor/codebook.c
@@ -15,7 +15,6 @@
 
  ********************************************************************/
 
-#include <alloca.h>
 #include <stdlib.h>
 #include <string.h>
 #include <math.h>
diff --git a/core/tremor/floor0.c b/core/tremor/floor0.c
index d4b35b8..bdb83b8 100644
--- a/core/tremor/floor0.c
+++ b/core/tremor/floor0.c
@@ -15,7 +15,6 @@
 
  ********************************************************************/
 
-#include <alloca.h>
 #include <stdlib.h>
 #include <string.h>
 #include <math.h>
diff --git a/core/tremor/info.c b/core/tremor/info.c
index d5375f0..200e5f9 100644
--- a/core/tremor/info.c
+++ b/core/tremor/info.c
@@ -18,7 +18,6 @@
 /* general handling of the header and the vorbis_info structure (and
    substructures) */
 
-#include <alloca.h>
 #include <stdlib.h>
 #include <string.h>
 #include <ctype.h>
diff --git a/core/tremor/mapping0.c b/core/tremor/mapping0.c
index 09a43a3..38d1405 100644
--- a/core/tremor/mapping0.c
+++ b/core/tremor/mapping0.c
@@ -15,7 +15,6 @@
 
  ********************************************************************/
 
-#include <alloca.h>
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
diff --git a/core/tremor/res012.c b/core/tremor/res012.c
index b569a75..224b54e 100644
--- a/core/tremor/res012.c
+++ b/core/tremor/res012.c
@@ -15,7 +15,6 @@
 
  ********************************************************************/
 
-#include <alloca.h>
 #include <stdlib.h>
 #include <string.h>
 #include <math.h>
diff --git a/core/tremor/sharedbook.c b/core/tremor/sharedbook.c
index 287c4ce..3fd379d 100644
--- a/core/tremor/sharedbook.c
+++ b/core/tremor/sharedbook.c
@@ -15,7 +15,6 @@
 
  ********************************************************************/
 
-#include <alloca.h>
 #include <stdlib.h>
 #include <math.h>
 #include <string.h>