diff --git a/dep/glew-2.1.0/makefile.linux b/dep/glew-2.1.0/makefile.linux
index 77d1bf14..269de6d3 100644
--- a/dep/glew-2.1.0/makefile.linux
+++ b/dep/glew-2.1.0/makefile.linux
@@ -15,4 +15,10 @@ PLAF_OBJ=
 
 include make.objects
 
+ifeq ($(BUILD_64),y)
+LIB_INSTALL_PREFIX=../lib/linux_gcc/x64/
+else
+LIB_INSTALL_PREFIX=../lib/linux_gcc/x86/
+endif
+
 include ../yac/staticlib_linux.mk
diff --git a/dep/glew-2.1.0/makefile.msvc b/dep/glew-2.1.0/makefile.msvc
index 123fab8e..885f6967 100644
--- a/dep/glew-2.1.0/makefile.msvc
+++ b/dep/glew-2.1.0/makefile.msvc
@@ -15,4 +15,10 @@ PLAF_OBJ=
 
 include make.objects
 
+ifeq ($(BUILD_64),y)
+LIB_INSTALL_PREFIX=../lib/msvc/x64/
+else
+LIB_INSTALL_PREFIX=../lib/msvc/x86/
+endif
+
 include ../yac/staticlib_msvc.mk
diff --git a/dep/jansson-2.10/makefile.linux b/dep/jansson-2.10/makefile.linux
index 0086a784..b1748d14 100644
--- a/dep/jansson-2.10/makefile.linux
+++ b/dep/jansson-2.10/makefile.linux
@@ -15,4 +15,10 @@ PLAF_OBJ=
 
 include make.objects
 
+ifeq ($(BUILD_64),y)
+LIB_INSTALL_PREFIX=../lib/linux_gcc/x64/
+else
+LIB_INSTALL_PREFIX=../lib/linux_gcc/x86/
+endif
+
 include ../yac/staticlib_linux.mk
diff --git a/dep/jansson-2.10/makefile.msvc b/dep/jansson-2.10/makefile.msvc
index 852875c0..d2477e12 100644
--- a/dep/jansson-2.10/makefile.msvc
+++ b/dep/jansson-2.10/makefile.msvc
@@ -15,4 +15,10 @@ PLAF_OBJ=
 
 include make.objects
 
+ifeq ($(BUILD_64),y)
+LIB_INSTALL_PREFIX=../lib/msvc/x64/
+else
+LIB_INSTALL_PREFIX=../lib/msvc/x86/
+endif
+
 include ../yac/staticlib_msvc.mk
diff --git a/dep/speexdsp-SpeexDSP-1.2rc3/makefile.linux b/dep/speexdsp-SpeexDSP-1.2rc3/makefile.linux
index d50efa6a..71c6f4bf 100644
--- a/dep/speexdsp-SpeexDSP-1.2rc3/makefile.linux
+++ b/dep/speexdsp-SpeexDSP-1.2rc3/makefile.linux
@@ -15,4 +15,10 @@ PLAF_OBJ=
 
 include make.objects
 
+ifeq ($(BUILD_64),y)
+LIB_INSTALL_PREFIX=../lib/linux_gcc/x64/
+else
+LIB_INSTALL_PREFIX=../lib/linux_gcc/x86/
+endif
+
 include ../yac/staticlib_linux.mk
diff --git a/dep/speexdsp-SpeexDSP-1.2rc3/makefile.msvc b/dep/speexdsp-SpeexDSP-1.2rc3/makefile.msvc
index e5c8656e..fcf667b2 100644
--- a/dep/speexdsp-SpeexDSP-1.2rc3/makefile.msvc
+++ b/dep/speexdsp-SpeexDSP-1.2rc3/makefile.msvc
@@ -15,4 +15,10 @@ PLAF_OBJ=
 
 include make.objects
 
+ifeq ($(BUILD_64),y)
+LIB_INSTALL_PREFIX=../lib/msvc/x64/
+else
+LIB_INSTALL_PREFIX=../lib/msvc/x86/
+endif
+
 include ../yac/staticlib_msvc.mk