diff --git a/apps/shared/interactive_curve_view_range_delegate.cpp b/apps/shared/interactive_curve_view_range_delegate.cpp
index 3f1b1f4e0..b04cbff58 100644
--- a/apps/shared/interactive_curve_view_range_delegate.cpp
+++ b/apps/shared/interactive_curve_view_range_delegate.cpp
@@ -1,7 +1,8 @@
 #include "interactive_curve_view_range_delegate.h"
 #include "interactive_curve_view_range.h"
-#include <float.h>
 #include <cmath>
+#include <float.h>
+#include <math.h>
 
 namespace Shared {
 
diff --git a/apps/shared/memoized_curve_view_range.cpp b/apps/shared/memoized_curve_view_range.cpp
index b69e00798..375f3cd0c 100644
--- a/apps/shared/memoized_curve_view_range.cpp
+++ b/apps/shared/memoized_curve_view_range.cpp
@@ -1,5 +1,6 @@
 #include "memoized_curve_view_range.h"
 #include <cmath>
+#include <math.h>
 #include <assert.h>
 #include <ion.h>
 
diff --git a/ion/Makefile b/ion/Makefile
index 3705d8a9e..6ad8d9eb8 100644
--- a/ion/Makefile
+++ b/ion/Makefile
@@ -1,7 +1,7 @@
 GIT := $(shell command -v git 2> /dev/null)
 PATCH_LEVEL = NONE
 ifdef GIT
-  PATCH_LEVEL = `git rev-parse --short HEAD`
+  PATCH_LEVEL = `git rev-parse HEAD | head -c 7`
 endif
 
 SFLAGS += -Iion/include -DKD_CONFIG_H=1
diff --git a/poincare/src/complex.cpp b/poincare/src/complex.cpp
index e61b44997..fcd9e110a 100644
--- a/poincare/src/complex.cpp
+++ b/poincare/src/complex.cpp
@@ -6,6 +6,7 @@ extern "C" {
 #include <float.h>
 }
 #include <cmath>
+#include <math.h>
 #include <poincare/complex_matrix.h>
 #include "layout/string_layout.h"
 #include "layout/baseline_relative_layout.h"
diff --git a/poincare/src/power.cpp b/poincare/src/power.cpp
index 334c8b21c..cb232d5aa 100644
--- a/poincare/src/power.cpp
+++ b/poincare/src/power.cpp
@@ -3,6 +3,7 @@ extern "C" {
 #include <stdlib.h>
 }
 #include <cmath>
+#include <math.h>
 #include <poincare/power.h>
 #include <poincare/multiplication.h>
 #include <poincare/opposite.h>