diff --git a/make/docs/Makefile b/make/docs/Makefile
index fcb461ae8c0a6958a0d898868bfbe22e72cbb7dc..e181b66a4ed1f5a56c8f2c1084943e10c9a21ea6 100644
--- a/make/docs/Makefile
+++ b/make/docs/Makefile
@@ -73,7 +73,7 @@ ifeq ($(ARCH_DATA_MODEL),64)
 else ifeq ($(ARCH),universal)
   MAX_VM_MEMORY = 1024
 else
-  MAX_VM_MEMORY = 612
+  MAX_VM_MEMORY = 768
 endif
 
 # List of all possible directories for javadoc to look for sources