diff --git a/linux-user/qemu.h b/linux-user/qemu.h
index e8a5aede95..cdf23a723a 100644
--- a/linux-user/qemu.h
+++ b/linux-user/qemu.h
@@ -116,10 +116,10 @@ typedef struct TaskState {
 #endif
 #if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32)
     /* Extra fields for semihosted binaries.  */
-    uint32_t heap_base;
-    uint32_t heap_limit;
+    abi_ulong heap_base;
+    abi_ulong heap_limit;
 #endif
-    uint32_t stack_base;
+    abi_ulong stack_base;
     int used; /* non zero if used */
     struct image_info *info;
     struct linux_binprm *bprm;